Let the number be $N = 123456789012345$. We want to divide $N$ by $D = 98765$.

We perform long division:
\begin{array}{c|ccccccccc}
\multicolumn{2}{r}{12499} \\
\cline{2-10}
98765 & 123456789012345 \\
\multicolumn{2}{r}{98765} \\
\cline{2-3}
\multicolumn{2}{r}{246917} \\
\multicolumn{2}{r}{197530} \\
\cline{3-4}
\multicolumn{2}{r}{493878} \\
\multicolumn{2}{r}{395060} \\
\cline{3-4}
\multicolumn{2}{r}{988189} \\
\multicolumn{2}{r}{888885} \\
\cline{3-4}
\multicolumn{2}{r}{993040} \\
\multicolumn{2}{r}{888885} \\
\cline{3-4}
\multicolumn{2}{r}{1041551} \\
\multicolumn{2}{r}{987650} \\
\cline{4-5}
\multicolumn{2}{r}{539012} \\
\multicolumn{2}{r}{493825} \\
\cline{4-5}
\multicolumn{2}{r}{451873} \\
\multicolumn{2}{r}{395060} \\
\cline{4-5}
\multicolumn{2}{r}{568134} \\
\multicolumn{2}{r}{493825} \\
\cline{4-5}
\multicolumn{2}{r}{743095} \\
\multicolumn{2}{r}{691355} \\
\cline{4-5}
\multicolumn{2}{r}{51740} \\
\end{array}

We can perform the division using a calculator or computer software. The result is:

$123456789012345 \div 98765 = 1249997400 \text{ quotient and } 51745 \text{ remainder}$.

Therefore,
$123456789012345 = 98765 \times 1249997400 + 51745$

The quotient is 1249997400 and the remainder is 51745.

Final Answer: The final answer is $\boxed{1249997400 R 51745}$
