Answer
$8x^3z-6x^2yz^2-4y^2.$
Work Step by Step
We divide each term of the polynomial by the monomial as follows
$$
\frac{224x^4y^2z^3 - 168x^3y^3z^4 - 112xy^4z^2}{28xy^2z^2 }\\= \frac{224x^4y^2z^3 }{28xy^2z^2 }+ \frac{ - 168x^3y^3z^4 }{28xy^2z^2 }+ \frac{ - 112xy^4z^2}{28xy^2z^2 } \\
=8x^3z-6x^2yz^2-4y^2.
$$
