840300 : 6 = 140050
$\snippet{name: long_division, x: 840300, y: 6}$
Проверка:
$\snippet{name: column_multiplication, x: 140050, y: 6}$
 
994000 : 7 = 142000
$\snippet{name: long_division, x: 994000, y: 7}$
Проверка:
$\snippet{name: column_multiplication, x: 142000, y: 7}$
 
130024 : 4 = 32506
$\snippet{name: long_division, x: 130024, y: 4}$
Проверка:
$\snippet{name: column_multiplication, x: 32506, y: 4}$

3509 + 45845 = 49354
$\snippet{name: op_column, sign: '+', x: 3509, y: 45845, z: 49354}$
Проверка:
$\snippet{name: op_column, sign: '-', x: 49354, y: 45845, z: 3509}$
 
50102 − 6945 = 43157
$\snippet{name: op_column, sign: '-', x: 50102, y: 6945, z: 43157}$
Проверка:
$\snippet{name: op_column, sign: '+', x: 43157, y: 6945, z: 50102}$
 
7306 * 4 = 29224
$\snippet{name: column_multiplication, x: 7306, y: 4}$
Проверка:
$\snippet{name: long_division, x: 29224, y: 4}$