We want to know how many 1/8's are in 3/4, so we divide.
\(\sf\dfrac{3}{4}\div\dfrac{1}{8}\)
Flip the 2nd fraction and multiply:
\(\sf\dfrac{3}{4}\times\dfrac{8}{1}\)
Multiply the numerators and denominators together:
\(\sf\dfrac{3\times8}{4\times1}\rightarrow\dfrac{24}{4}\)
Divide:
\(\boxed{\sf6}\)