(1445561 : 3587 − 208) * 356 + 3580 = (403 − 208) * 356 + 3580 = 69420 − 3580 = 65840
1) $\snippet{name: long_division, x: 1445561, y: 3587}$
2) $\snippet{name: op_column, sign: '-', x: 403, y: 208, z: 195}$
3) $\snippet{name: column_multiplication, x: 195, y: 356}$
4) $\snippet{name: op_column, sign: '-', x: 69420, y: 3580, z: 65840}$

(1420288 : 4672 + 259) * 234 − 1742 = (304 + 259) * 234 − 1742 = 131742 − 1742 = 130000
1) $\snippet{name: long_division, x: 1420288, y: 4672}$
2) $\snippet{name: op_column, sign: '+', x: 304, y: 259, z: 563}$
3) $\snippet{name: column_multiplication, x: 563, y: 234}$
4) $\snippet{name: op_column, sign: '-', x: 131742, y: 1742, z: 130000}$