You can file I-485 for your wife to stay and adjust in the US if needed.
Bear in mind, this means she won't be able to travel outside of the US for a long while. She won't be able to work for a long while. Ensure she's OK with it first.
Also, bear in mind, hopefully she didn't have a plan of coming to the US and adjusting, because that would result in misrepresentation and inadmissability.
As to your stepdaughter, I cannot say for sure, but it seems like she's also eligible for AOS now, since she's under 21 and you were married to her mother before she was 18.
So you need to submit all the forms including but not limitrd to I-130, I-485, I-765, I-131 etc by mail.
The end result is - neither your wife or daughter will have visa. They'll get GC if they get approved here in the US.
If they plan going through consular processing overseas, you don't need I-485.