automatic enter when copy and past

I have newbie,
I want to copy a file with a line with some characters and after the 5th character I want to go to new line.
example
I have on word :
22 222 rrrrrrr
copy it and paste on fckeditor and now I want see(and have the corresponding html)this:
22 22
rrrrr
rrr

I do not know if I could explain it well
Where should I go? Which jsp files I have to change?
Sorry but I do not know just where to begin

thank you