How many different combinations can be made with the word ' onomatopoeia '

First you know there is 12 letters

onomatopoeia

oooonmaatpei  (organised)

There is more of one letter. 4 O's.  2 A's.

So 

$${\frac{{\mathtt{12}}{!}}{\left({\mathtt{4}}{!}{\mathtt{\,\times\,}}{\mathtt{2}}{!}\right)}} = {\mathtt{9\,979\,200}}$$

This is the answer.

Thanks!!!!!@

Also it's called permutation, i used to called it combination but i learnt to use the word permutation it is more accurate.

(Melody)      :)

Wow!!!!....very impressive, MG1.....!!!!!!

YES that is EXCELLENT  MG !!!    

Thanks, I learnt from Melody.

And I'm proud of myself.