438500 : 700 = 626 (ост.300)
$\begin{array}{cc}\begin{array}{l}\underset{¯}{\phantom{0}}438500\\ \phantom{0}\underset{¯}{4200}\\ \phantom{0}\underset{¯}{\phantom{0}}1850\\ \phantom{00}\underset{¯}{1400}\\ \phantom{00}\underset{¯}{\phantom{0}}4500\\ \phantom{000}\underset{¯}{4200}\\ \phantom{0000}300\end{array}& \begin{array}{l}\overline{)700}\\ \overline{\overline{)626}}\end{array}\end{array}$
Проверка:
1) 300 < 700;
2) $\begin{array}{r}\times \underset{¯}{\begin{array}{r}626\\ 700\end{array}}\\ 0\\ 0\phantom{0}\\ 4382\phantom{00}\\ \overline{438200}\end{array}$;
3) 438200 + 300 = 438500.