32 * (645 : 15 * 18 + 226) − 100 : (75 : 3) = 32 * (43 * 18 + 226) − 100 : 25 = 32 * (774 + 226) − 4 = 32 * 1000 − 4 = 32000 − 4 = 31996
$\snippet{name: long_division, x: 645, y: 15}$
$\snippet{name: column_multiplication, x: 43, y: 18}$