To calculate the quotient of \(-78.42 \div -1.5\), we first note that dividing two negative numbers will yield a positive result.
Now perform the division:
\[ 78.42 \div 1.5 = 52.28 \]
So, the quotient of \(-78.42 \div -1.5\) is \(52.28\).
The correct response is:
52.28