10000 − 4500 * 70 : 90 = 10000 − 315000 : 90 = 10000 − 3500 = 6500
1) $\snippet{name: op_column, sign: '×', x: '4500  ', y: '70    ', z: '315000'}$;
2) $\snippet{name: long_division, x: 315000, y: 90}$;
3) 10000 − 3500 = 6500.
 
2099 + 8050 * 20 : 50 = 2099 + 161000 : 50 = 2099 + 3220 = 5319
1) $\snippet{name: op_column, sign: '×', x: '8050  ', y: '20  ', z: '161000 '}$;
2) $\snippet{name: long_division, x: 161000, y: 50}$;
3) $\snippet{name: op_column, sign: '+', x: '2099', y: '3220', z: '5319'}$.
 
276300 : 900 = 2763 : 9 = 307
$\snippet{name: long_division, x: 2763, y: 9}$
 
563500 : 700 = 5635 : 7 = 805
$\snippet{name: long_division, x: 5635, y: 7}$