To solve \( 72 \div 4 \div (-6) \), we will perform the division step-by-step.
First, divide \( 72 \) by \( 4 \):
\[ 72 \div 4 = 18 \]
Next, take the result (18) and divide it by \(-6\):
\[ 18 \div (-6) = -3 \]
Thus, the final result is:
\[ \boxed{-3} \]