| 10 | ÷ | 4457 50 | + | 4 | ÷ | 447 10 | + | 6 | ÷ | 451 10 | + | ( | 331 5 | − | X | ) | ÷ | 637 5 | + | X | ÷ | 1000 | = | 61 100 |
| Left side of the equation = | 500 4457 | + | 40 447 | + | 60 451 | + | ( | 331 5 | − | X | ) | × | 5 637 | + | X | × | 1 1000 |
| = | 300739520 898517829 | + | ( | 331 5 | − | X | ) | × | 5 637 | + | 1 1000 | X |
300739520 898517829 | + | ( | 331 5 | − | X | ) | × | 5 637 | + | 1 1000 | X | = | 61 100 |
| Left side of the equation = | 300739520 898517829 | + | 331 5 | × | 5 637 | − | X | × | 5 637 | + | 1 1000 | X |
| = | 300739520 898517829 | + | 331 637 | − | X | × | 5 637 | + | 1 1000 | X |