To evaluate \( \frac{8^7}{8^5} \), we can use the property of exponents that states \( \frac{a^m}{a^n} = a^{m-n} \).
Applying this property:
\[ \frac{8^7}{8^5} = 8^{7-5} = 8^2 \]
Now, we calculate \( 8^2 \):
\[ 8^2 = 64 \]
Thus, the final answer is:
\[ \boxed{64} \]