624 : 3 * 15 = 624 : 3 * 15 = 208 * 15 = 3120
$\snippet{name: long_division, x: 624, y: 3}$
$\snippet{name: column_multiplication, x: 208, y: 15}$
 
972 : 27 : 4 = 36 : 4 = 9
$\snippet{name: long_division, x: 972, y: 27}$
 
1200 − (809 − 540) = 1200 − 269 = 931
$\snippet{name: op_column, sign: '-', x: '809', y: '540', z: '269'}$
$\snippet{name: op_column, sign: '-', x: '1200', y: '269', z: '931'}$
 
516 : (1200 : 200) = 516 : (12 : 2) = 516 : 6 = 86
$\snippet{name: long_division, x: 516, y: 6}$
 
10000 : 100 : 25 = 100 : 25 = 4
 
(180 + 309) : 3 = 489 : 3 = 163
$\snippet{name: op_column, sign: '+', x: '180', y: '309', z: '489'}$
$\snippet{name: long_division, x: 489, y: 3}$