Answer
$6m^2-24m+99-\frac{326}{{m+4}}$
Work Step by Step
Re-arranging the order of the terms and filling out any missing terms, the given is equivalent to
$$
(6m^3+0m^2+3m+70)÷(m+4)
.$$
Using the long division method shown below, then
$$\begin{aligned}
&
(6m^3+0m^2+3m+70)÷(m+4)
\\&=
6m^2-24m+99+\frac{\color{red}{-326}}{\color{blue}{m+4}}
\end{aligned}
.$$
