Решение:
\[ \frac{7-56}{36} = \frac{-49}{36} \]
\[ \frac{-49}{36} : \frac{49}{6} = \frac{-49}{36} \cdot \frac{6}{49} \]
\[ \frac{-1}{6} \cdot \frac{1}{1} = \frac{-1}{6} \]
\[ \frac{-1}{6} \cdot \frac{6}{7} = \frac{-1}{1} \cdot \frac{1}{7} = \frac{-1}{7} \]
Ответ: $$-\frac{1}{7}$$