comma delimited field

Hello!

I am working with a table and I would like to get this:

number(stored as text) Code Year
0500, 0600, 0700 ABC1 2012

to this:

number Code Year
0500 ABC1 2012
0600 ABC1 2012
0700 ABC1 2012

I have gotten to where I can insert each number/space/comma into a new row but obviously I need it to break it at the commas. Ideas?