294 : 42;
140 : 35;
230 : 46;
162 : 54;
252 : 63;
504 : 84;
365 : 73 + 252 * 84;
390 : 65 + 224 * 32.

294 : 42 = 7
$\snippet{name: long_division, x: 294, y: 42}$
140 : 35 = 4
$\snippet{name: long_division, x: 140, y: 35}$
230 : 46 = 5
$\snippet{name: long_division, x: 230, y: 46}$
162 : 54 = 3
$\snippet{name: long_division, x: 162, y: 54}$
252 : 63 = 4
$\snippet{name: long_division, x: 252, y: 63}$
504 : 84 = 6
$\snippet{name: long_division, x: 504, y: 84}$
365 : 73 + 252 * 84 = 5 + 21168 = 21173
$\snippet{name: long_division, x: 365, y: 73}$
$\snippet{name: column_multiplication, x: 252, y: 84}$
390 : 65 + 224 * 32 = 6 + 7168 = 7174
$\snippet{name: long_division, x: 390, y: 65}$
$\snippet{name: column_multiplication, x: 224, y: 32}$