The mathematical operation of dividing one number by another (division), the inverse of multiplication.
小学校では筆算を使って除算（割り算）を学ぶ。
In elementary school students learn division using written arithmetic (long division).
プログラミングでは整数の除算と浮動小数点の除算で結果が変わることがある。
In programming, integer division and floating-point division can produce different results.