$24 \overset{3}{*} \overset{1}{7^2} \overset{6}{-} 16 \overset{4}{*} \overset{2}{2^2} \overset{7}{+} 1938 \overset{5}{:} 19 = 1214$
1) $7^2 = 49$
2) $2^2 = 4$
3) 24 * 49 = 1176
4) 16 * 4 = 64
5) 1938 : 19 = 102
6) 1176 − 64 = 1112
7) 1112 + 102 = 1214

Вычисления:
3)
$\snippet{name: column_multiplication, x: 24, y: 49}$
4)
$\snippet{name: column_multiplication, x: 16, y: 4}$
5)
$\snippet{name: long_division, x: 1938, y: 19}$
6)
$\snippet{name: op_column, sign: '-', x: '1176', y: '64', z: '1112 '}$
7)
$\snippet{name: op_column, sign: '+', x: '1112', y: '102', z: '1214 '}$

$\overset{4}{12^3} \overset{5}{*} 4 \overset{7}{-} 4 \overset{6}{*} (84 \overset{3}{+} \overset{1}{14^2} \overset{2}{*} 6) = 1872$
1) $14^2 = 196$
2) 196 * 6 = 1176
3) 84 + 1176 = 1260
4) $12^3 = 1728$
5) 1728 * 4 = 6912
6) 4 * 1260 = 5040
7) 6912 − 5040 = 1872

Вычисления:
1)
$\snippet{name: column_multiplication, x: 14, y: 14}$
2)
$\snippet{name: column_multiplication, x: 196, y: 6}$
3)
$\snippet{name: op_column, sign: '+', x: '1176', y: '84', z: '1260 '}$
4)
$\snippet{name: column_multiplication, x: 12, y: 12}$
 
$\snippet{name: column_multiplication, x: 144, y: 12}$
5)
$\snippet{name: column_multiplication, x: 1728, y: 4}$
6)
$\snippet{name: op_column, sign: 'x', x: '1260', y: '4  ', z: '5040 '}$
7)
$\snippet{name: op_column, sign: '-', x: '6912', y: '5040', z: '1872 '}$