Dragging formulas which include vertical and horizantal variables

Forgive me if this is simple, but I have not been able to find an answer yet.

I am interested in multiplying two values, and dragging the formula vertically along side the data that is in a column. The values I want to multiply it by is arranged in a row, and needs to stay in a row. I am wondering how I can drag the formula vertically while having the variable in the row follow.

Ex. I have data in M2-M10 and want to create a formula that I can drag from N2-N10 that multiplies the M column data by values in A1-I1.

I may not have been very clear. So what I want is for N2=M2*A1, N3=M3*B1, N4=M4*C1, N5=M5*D1, etc... These cells I am referencing are just to simplify the explanation. In reality I have a much larger data set that I am trying to apply this to which is why I am interested in being able to drag one formula vertically, while multiplying the vertical data AND horizontal data.

Hope this clears it up.

Thanks!

Try this in N2 and filled down.

=M2*INDEX(A$1:I$1,ROWS($1:1))

Works perfectly, thanks so much Jonmo1!

You're welcome.