273150 : 45 = 6070
$\snippet{name: long_division, x: 273150, y: 45}$
 
449920 : 64 = 7030
$\snippet{name: long_division, x: 449920, y: 64}$
 
479120 : 53 = 9040
$\snippet{name: long_division, x: 479120, y: 53}$
 
923400 : 19 = 48600
$\snippet{name: long_division, x: 923400, y: 19}$
 
676800 : 18 = 37600
$\snippet{name: long_division, x: 676800, y: 18}$
 
899200 : 16 = 56200
$\snippet{name: long_division, x: 899200, y: 16}$
 
90000 − 508 * 173 = 90000 − 87884 = 2116
1) $\snippet{name: column_multiplication, x: 508, y: 173}$;
2) $\snippet{name: op_column, sign: '-', x: '90000', y: '87884', z: '2116'}$.
 
324 * 250 − 689 = 81000 − 689 = 80311
1) $\snippet{name: column_multiplication, x: 324, y: 250}$;
2) $\snippet{name: op_column, sign: '-', x: '81000', y: '689', z: '80311'}$.
 
5001 − 272 * 16 = 5001 − 4352 = 649
1) $\snippet{name: column_multiplication, x: 272, y: 16}$;
2) $\snippet{name: op_column, sign: '-', x: '5001', y: '4352', z: '649'}$.