399 : 57 = 7
$\snippet{name: long_division, x: 399, y: 57}$
 
236 : 59 = 4
$\snippet{name: long_division, x: 236, y: 59}$
 
475 : 95 = 5
$\snippet{name: long_division, x: 475, y: 95}$
 
609 * 27 − 4320 : 60 = 164443 − 72 = 16371
1) $\snippet{name: column_multiplication, x: 609, y: 27}$;
2) $\snippet{name: long_division, x: 4320, y: 60}$;
3) $\snippet{name: op_column, sign: '-', x: '164443', y: '72', z: '16371'}$.