You can
put this solution on YOUR website! Try to factor and see if that helps (in case numerator is factorable).
3x^3 -24x^2 221x -1768
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x+8 | 3x^4 0x^3 29x^2 0x 36
| 3x^4 24x^3
|___________________________________________
0 -24x^3 29x^2
-24x^3 -192x^2
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0 221x^2 0x
221x^2 1768x
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0 -1768x 36
-1768x -14144
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0 14180, the remainder