if never received a notice that case was approved at USCIS stage, you can check it there
If it was sent on to NVC and you received the embassy number, check it here
note that if you never went thru with the I 184 and ds 260 at this stage, the petition would have died
https://egov.uscis.gov/
with your new I 130, send a notice that you are cancelling the other petition as there was a divorce, send copy (not original) of the divorce papers