Help with multiplication

[Volition87]

First Hi Everyone.
I'm new here, and i could say i'm new to Excel :P

This is my first time i have to make an table in Excel and ofc its kinda hard for me...
Here is what i need to do
I have a table with 5 columns and like 1000 rows.

i've started to add the functions manually but i think ill go crazy if i continue with this...


(my bad english prevents me from writing down whats realy about)

so im at 137th row wrtiting down in F136 function =D136*E136
is there any fast way to do it for all 1000 rows


I am kinda sure some of you will ROFL about this, but what to say, i'm a newb.