Use the algorithm method.
| | | | 5 | 4 | 8 | 6 | 9 |
| 1 | 8 | | | 9 | 8 | 7 | 6 | 5 | 4 |
| | | 9 | 0 | | | | |
| | | | | | | | |
| | | | 8 | 7 | | | |
| | | | 7 | 2 | | | |
| | | | | | | | |
| | | | 1 | 5 | 6 | | |
| | | | 1 | 4 | 4 | | |
| | | | | | | | |
| | | | | 1 | 2 | 5 | |
| | | | | 1 | 0 | 8 | |
| | | | | | | | |
| | | | | | 1 | 7 | 4 |
| | | | | | 1 | 6 | 2 |
| | | | | | | | |
| | | | | | | 1 | 2 |
Therefore, \(987654\div 18=54869\) with a remainder of \(12\).
\[54869 \text{ with a remainder of } 12\]
Decimal Form: 54869.666667
remainder(54869,12,18)
