【Question 7】
The quotient of the two septenary integers 454 and 5, expressed in septenary, is $\qquad$
$$
\begin{array}{l}
(454)_{7}=\left(4 \times 7^{2}+5 \times 7^{1}+4 \times 7^{0}\right)_{10}=(235)_{10} \\
(5)_{7}=(5)_{10} \\
(454)_{7} \div(5)_{7}=(235)_{10} \div(5)_{10}=(47)_{10}=\left(6 \times 7^{1}+5 \times 7^{0}\right)_{10}=(65)_{7}
\end{array}
$$