54306 : 6 = 9051
$\snippet{name: long_division, x: 54306, y: 6}$
 
93025 : 5 = 18605
$\snippet{name: long_division, x: 93025, y: 5}$
 
35109 : 3 = 11703
$\snippet{name: long_division, x: 35109, y: 3}$
 
7 * (3002 − 786 + 414) = 7 * (2216 + 414) = 7 * 2630 = 18410
$\snippet{name: op_column, sign: '-', x: 3002, y: 786, z: 2216}$
 
$\snippet{name: op_column, sign: '+', x: 2216, y: 414, z: 2630}$
 
$\snippet{name: column_multiplication, x: 2630, y: 7}$
 
9101 − (470 − 309) * 8 = 9101 − 161 * 8 = 9101 − 1288 = 7813
$\snippet{name: op_column, sign: '-', x: 470, y: 309, z: 161}$
 
$\snippet{name: column_multiplication, x: 161, y: 8}$
 
$\snippet{name: op_column, sign: '-', x: 9101, y: 1288, z: 7813}$
 
8204 − (360 + 840) : 4 = 8204 − 1200 : 4 = 8204 − 300 = 7904
$\snippet{name: op_column, sign: '+', x: 360, y: 840, z: 1200}$
 
$\snippet{name: long_division, x: 1200, y: 4}$
 
$\snippet{name: op_column, sign: '-', x: 8204, y: 300, z: 7904}$