768 : 24;
4088 : 73;
2688 : 32;
3392 : 53;
2000 − 450 * 342 : 900;
4010 − 106 * 150 : 300.

768 : 24 = 32
$\snippet{name: long_division, x: 768, y: 24}$
4088 : 73 = 56
$\snippet{name: long_division, x: 4088, y: 73}$
2688 : 32 = 84
$\snippet{name: long_division, x: 2688, y: 32}$
3392 : 53 = 64
$\snippet{name: long_division, x: 3392, y: 53}$
2000 − 450 * 342 : 900 = 2000 − 153900 : 900 = 2000 − 171 = 1829
1) $\snippet{name: column_multiplication, x: 450, y: 32}$;
2) $\snippet{name: long_division, x: 153900, y: 900}$;
3) $\snippet{name: op_column, sign: '-', x: '2000', y: '171', z: '1829'}$.
4010 − 106 * 150 : 300 = 4010 − 15900 : 300 = 4010 − 53 = 3957
1) $\snippet{name: column_multiplication, x: 106, y: 150}$;
2) $\snippet{name: long_division, x: 15900, y: 300}$;
3) $\snippet{name: op_column, sign: '-', x: '4010', y: '53', z: '3957'}$.