$\frac{ 11 }{ 9 }\div\frac{ 3 }{ 4 }$
To divide by a fraction, multiply by the reciprocal of that fraction$\frac{ 11 }{ 9 } \times \frac{ 4 }{ 3 }$
Multiply the fractions$\begin{align*}&\frac{ 44 }{ 27 } \\&\begin{array} { l }1 \frac{ 17 }{ 27 },& 1.\overset{ \cdot }{ 6 } 2\overset{ \cdot }{ 9 } \end{array}\end{align*}$