Ответ:

\(8\frac{4}{9}=\frac{76}{9}\), \(3\frac{4}{5}=\frac{19}{5}\).

\(\frac{76}{9}:\frac{19}{5}=\frac{76}{9}\cdot\frac{5}{19}=\frac{20}{9}=2\frac{2}{9}\).

Ответ: 2 2/9