what is the remainder of 1320559350 divided by 97 ?
\(\begin{array}{|rcll|} \hline 1320\ 55\ 93\ 50 \pmod{97} \\\\ 1320 \pmod{97} &=& 59 \\ 59\ 55 \pmod{97} &=& 38 \\ 38\ 93 \pmod{97} &=& 13 \\ 13\ 50 \pmod{97} &=& \color{red}89 \\ \hline \end{array} \)
\(1320\ 55\ 93\ 50 \pmod{97} = \color{red}89 \)