49184 + 4575 : 15 − 62 * 93 − 33999 = 9724
1) $\snippet{name: long_division, x: 4575, y: 15}$
2) $\snippet{name: column_multiplication, x: 62, y: 93}$
3) $\snippet{name: op_column, sign: '+', x: 49184, y: 305, z: 49489}$
4) $\snippet{name: op_column, sign: '-', x: 49489, y: 5766, z: 43723}$
5) $\snippet{name: op_column, sign: '-', x: 43723, y: 33999, z: 9724}$

(306 * 307 − 187 * 36) : 45 + 5780 = 7718
1) $\snippet{name: column_multiplication, x: 306, y: 37}$
2) $\snippet{name: column_multiplication, x: 187, y: 36}$
3) $\snippet{name: op_column, sign: '-', x: 93942, y: 6732, z: 87210}$
4) $\snippet{name: long_division, x: 87210, y: 45}$
5) $\snippet{name: op_column, sign: '+', x: 1938, y: 5780, z: 7718}$

1885 : (542 − 477) + 48 * (134 − 92) = 2045
1) $\snippet{name: op_column, sign: '-', x: 542, y: 477, z: 65}$
2) $\snippet{name: op_column, sign: '-', x: 134, y: 92, z: 42}$
3) $\snippet{name: long_division, x: 1885, y: 65}$
4) $\snippet{name: column_multiplication, x: 48, y: 42}$
5) $\snippet{name: op_column, sign: '+', x: 29, y: 2016, z: 2045}$