### Теорія:

Знайдемо частку тризначного числа $$324$$ і двозначного числа $$81$$ у стовпчик:

$\begin{array}{l}\begin{array}{cc}\begin{array}{l}{}_{-}738\phantom{\rule{0.147em}{0ex}}\phantom{\rule{0.147em}{0ex}}\phantom{\rule{0.147em}{0ex}}\phantom{\rule{0.147em}{0ex}}\phantom{\rule{0.147em}{0ex}}\\ \phantom{\rule{0.147em}{0ex}}\phantom{\rule{0.147em}{0ex}}\phantom{\rule{0.147em}{0ex}}\phantom{\rule{0.147em}{0ex}}\underset{¯}{738}\end{array}& \left|\begin{array}{l}\underset{¯}{82}\\ 9\end{array}\right\end{array}\\ \phantom{\rule{0.147em}{0ex}}\phantom{\rule{0.147em}{0ex}}\phantom{\rule{0.147em}{0ex}}\phantom{\rule{0.147em}{0ex}}\phantom{\rule{0.147em}{0ex}}\phantom{\rule{0.147em}{0ex}}\phantom{\rule{0.147em}{0ex}}\phantom{\rule{0.147em}{0ex}}\phantom{\rule{0.147em}{0ex}}\phantom{\rule{0.147em}{0ex}}\phantom{\rule{0.147em}{0ex}}\phantom{\rule{0.147em}{0ex}}0\end{array}$

Поділимо $$73$$ $$дес.$$ на $$8$$ $$дес.,$$ отримаємо приблизно $$9.$$

Перевіримо, чи підходить це число як частка чисел $$738$$ і $$82.$$

Для цього помножимо $$82$$ на $$9:$$

Дійсно:

$82\cdot 9=738$

Отже, частка — $$9$$
Приклад:
1. Поділимо $$406$$ на $$58:$$

$\begin{array}{l}\begin{array}{cc}\begin{array}{l}{}_{-}406\phantom{\rule{0.147em}{0ex}}\phantom{\rule{0.147em}{0ex}}\phantom{\rule{0.147em}{0ex}}\phantom{\rule{0.147em}{0ex}}\phantom{\rule{0.147em}{0ex}}\\ \phantom{\rule{0.147em}{0ex}}\phantom{\rule{0.147em}{0ex}}\phantom{\rule{0.147em}{0ex}}\phantom{\rule{0.147em}{0ex}}\underset{¯}{406}\end{array}& \left|\begin{array}{l}\underset{¯}{58}\\ 7\end{array}\right\end{array}\\ \phantom{\rule{0.147em}{0ex}}\phantom{\rule{0.147em}{0ex}}\phantom{\rule{0.147em}{0ex}}\phantom{\rule{0.147em}{0ex}}\phantom{\rule{0.147em}{0ex}}\phantom{\rule{0.147em}{0ex}}\phantom{\rule{0.147em}{0ex}}\phantom{\rule{0.147em}{0ex}}\phantom{\rule{0.147em}{0ex}}\phantom{\rule{0.147em}{0ex}}\phantom{\rule{0.147em}{0ex}}\phantom{\rule{0.147em}{0ex}}0\end{array}$

Перевірка:

$$58· 7= 406$$

2. Знайдемо частку чисел $$310$$ і $$62:$$

$\begin{array}{l}\begin{array}{cc}\begin{array}{l}{}_{-}310\phantom{\rule{0.147em}{0ex}}\phantom{\rule{0.147em}{0ex}}\phantom{\rule{0.147em}{0ex}}\phantom{\rule{0.147em}{0ex}}\phantom{\rule{0.147em}{0ex}}\\ \phantom{\rule{0.147em}{0ex}}\phantom{\rule{0.147em}{0ex}}\phantom{\rule{0.147em}{0ex}}\phantom{\rule{0.147em}{0ex}}\underset{¯}{310}\end{array}& \left|\begin{array}{l}\underset{¯}{62}\\ 5\end{array}\right\end{array}\\ \phantom{\rule{0.147em}{0ex}}\phantom{\rule{0.147em}{0ex}}\phantom{\rule{0.147em}{0ex}}\phantom{\rule{0.147em}{0ex}}\phantom{\rule{0.147em}{0ex}}\phantom{\rule{0.147em}{0ex}}\phantom{\rule{0.147em}{0ex}}\phantom{\rule{0.147em}{0ex}}\phantom{\rule{0.147em}{0ex}}\phantom{\rule{0.147em}{0ex}}\phantom{\rule{0.147em}{0ex}}\phantom{\rule{0.147em}{0ex}}0\end{array}$

Перевірка:

$$62· 5= 310$$