To simplify the expression \( \frac{8^6}{4^6} \), we can rewrite the bases in terms of powers of 2.
First, note that:
- \( 8 = 2^3 \)
- \( 4 = 2^2 \)
Now we can rewrite the expression:
\[ 8^6 = (2^3)^6 = 2^{3 \cdot 6} = 2^{18} \]
\[ 4^6 = (2^2)^6 = 2^{2 \cdot 6} = 2^{12} \]
Now substitute these back into the original expression:
\[ \frac{8^6}{4^6} = \frac{2^{18}}{2^{12}} \]
Using the properties of exponents, we can simplify:
\[ \frac{2^{18}}{2^{12}} = 2^{18 - 12} = 2^6 \]
Thus, \( \frac{8^6}{4^6} = 2^6 \).
Therefore, the correct answer is:
2 to the power of 6.