To simplify \(\frac{9^8}{9^6}\) using the Quotient Rule of Exponents, you subtract the exponents when dividing like bases.
The Quotient Rule states that:
\[ \frac{a^m}{a^n} = a^{m-n} \]
In this case, we have:
\[ \frac{9^8}{9^6} = 9^{8-6} = 9^2 \]
Thus, the equivalent expression is:
\[ 9^2 \]
If needed, \(9^2\) can be further simplified to 81, but the answer in exponent form is often preferred:
\(\boxed{9^2}\)