(55 + 14445 : 321) * (319 − 283) = (55 + 45) * 36 = 100 − 36 = 3600
1) $\snippet{name: long_division, x: 14445, y: 321}$
2) $\snippet{name: op_column, sign: '+', x: 55, y: 45, z: 100}$
3) $\snippet{name: op_column, sign: '-', x: 319, y: 283, z: 36}$
3) $\snippet{name: column_multiplication, x: 100, y: 36}$

(48 + 1160 : 145) * 27 − 12 = (48 + 8) * 27 − 12 = 56 * 27 − 12 = 1512 − 12 = 1500
1) $\snippet{name: long_division, x: 1160, y: 145}$
2) $\snippet{name: op_column, sign: '+', x: 48, y: 8, z: 56}$
3) $\snippet{name: column_multiplication, x: 56, y: 27}$
3) $\snippet{name: op_column, sign: '-', x: 1512, y: 12, z: 1500}$