We have that in a quotient of two powers with the same base the exponent of the result is the substraction between exponents.
In this case, we have that:
[tex]\frac{4^3}{4^2}[/tex]Since the base is 4, we can substract the exponents:
[tex]\frac{4^3}{4^2}=4^{3-2}=4^1=4[/tex]Answer = 4