Answer
$-11a^{6}b^{6}c^4$
Work Step by Step
RECALL:
The quotient rule of exponents states that: $\dfrac{a^m}{a^n}=a^{m-n}, a \ne 0$.
Divide the numerical coefficients, and use the quotient rule to find:
$=-11a^{9-3}b^{7-1}c^{6-2}
\\=-11a^{6}b^{6}c^4$