$703 \overset{3}{-} 21 \overset{2}{*} (361 \overset{1}{-} 349) = 451$
1)
$\snippet{name: op_column, sign: '-', x: 361, y: 349, z: 12}$
2)
$\snippet{name: column_multiplication, x: 21, y: 12}$
3)
$\snippet{name: op_column, sign: '-', x: 703, y: 252, z: 451}$

$2346 \overset{2}{:} (209 \overset{1}{-} 186) \overset{3}{*} 15 = 1530$
1)
$\snippet{name: op_column, sign: '-', x: 209, y: 186, z: 23}$
2)
$\snippet{name: long_division, x: 2346, y: 23}$
3)
$\snippet{name: column_multiplication, x: 102, y: 15}$

$6422 \overset{3}{-} 24 \overset{2}{*} (372 \overset{1}{:} 12) = 5678$
1)
$\snippet{name: long_division, x: 372, y: 12}$
2)
$\snippet{name: column_multiplication, x: 24, y: 31}$
3)
$\snippet{name: op_column, sign: '-', x: 6422, y: 744, z: 5678}$

$2678 \overset{2}{:} (506 \overset{1}{-} 480) \overset{3}{+} 297 = 400$
1)
$\snippet{name: op_column, sign: '-', x: 506, y: 480, z: 26}$
2)
$\snippet{name: long_division, x: 2678, y: 26}$
3)
$\snippet{name: op_column, sign: '+', x: 103, y: 297, z: 400}$

$77 \overset{2}{*} (452 \overset{1}{-} 348) \overset{3}{-} 99 = 7909$
1)
$\snippet{name: op_column, sign: '-', x: 452, y: 348, z: 104}$
2)
$\snippet{name: column_multiplication, x: 77, y: 104}$
3)
$\snippet{name: op_column, sign: '-', x: 8008, y: 99, z: 7909}$

$874 \overset{3}{-} (27 \overset{1}{*} 90 \overset{2}{-} 1999) = 443$
1)
$\snippet{name: column_multiplication, x: 27, y: 90}$
2)
$\snippet{name: op_column, sign: '-', x: 2430, y: 1999, z: 431}$
3)
$\snippet{name: op_column, sign: '-', x: 874, y: 431, z: 443}$

$(1593 \overset{1}{:} 27 \overset{2}{+} 326) \overset{3}{*} 60 = 23100$
1)
$\snippet{name: long_division, x: 1593, y: 27}$
2)
$\snippet{name: op_column, sign: '+', x: 59, y: 326, z: 385}$
3)
$\snippet{name: column_multiplication, x: 385, y: 60}$

$6720 \overset{1}{:} 12 \overset{2}{*} 35 \overset{3}{-} 898 = 18702$
1)
$\snippet{name: long_division, x: 6720, y: 12}$
2)
$\snippet{name: column_multiplication, x: 560, y: 35}$
3)
$\snippet{name: op_column, sign: '-', x: 19600, y: 898, z: 18702}$