Answer
$$50x^4-7x^3+2$$
Work Step by Step
In order to divide monomials, we look for common terms in the numerator and the denominator that can be canceled out. Doing this, we find:
$$\frac{x\left(50x^4-7x^3+2\right)}{x} \\ 50x^4-7x^3+2$$
Note, if we wanted to check this answer, we could multiply the answer by the value we canceled out to see if that matched the original numerator.