(57 * 9 + 87) : 6 = (513 + 87) : 6 = 600 : 6 = 100
$\snippet{name: column_multiplication, x: 57, y: 9}$
 
$\snippet{name: op_column, sign: '+', x: 513, y: 87, z: 600}$
 
$\snippet{name: long_division, x: 600, y: 6}$
 
(648 : 4 − 78) * 4 = (162 − 78) * 4 = 84 * 4 = 336;
$\snippet{name: long_division, x: 648, y: 4}$
 
$\snippet{name: op_column, sign: '-', x: 162, y: 78, z: 84}$
 
$\snippet{name: column_multiplication, x: 84, y: 4}$
 
(807 − 55 * 6) : 9 = (807 − 330) : 9 = 477 : 9 = 53
$\snippet{name: column_multiplication, x: 55, y: 6}$
 
$\snippet{name: op_column, sign: '-', x: 807, y: 330, z: 477}$
 
$\snippet{name: long_division, x: 477, y: 9}$
 
(900 − 755 : 5) : 7 = (900 − 151) : 7 = 749 : 7 = 107
$\snippet{name: long_division, x: 755, y: 5}$
 
$\snippet{name: op_column, sign: '-', x: 900, y: 151, z: 749}$
 
$\snippet{name: long_division, x: 749, y: 7}$
 
137 * 6 : 2 = 822 : 2 = 411
$\snippet{name: column_multiplication, x: 137, y: 6}$
 
$\snippet{name: long_division, x: 822, y: 2}$
 
219 : 3 * 8 = 73 * 8 = 584.
$\snippet{name: long_division, x: 219, y: 3}$
 
$\snippet{name: column_multiplication, x: 73, y: 8}$