Perform the Indicated Operation Involving Rational Numbers $\left( - \frac { 5 } { 6 } \right) \div \frac { 40 } { 66 }$

Perform the indicated operation involving rational numbers. Express final answer in reduced form. $\left( - \frac { 5 } { 6 } \right) \div \frac { 40 } { 66 }$