With difficulty. I doubt it is worth it for the time being.
The process of acquiring someone new isn't the real issue here. You can handle all the paperwork, the interview process and so forth remotely.
However, once you've gotten someone new hired in, you need to get them set up with everything they need, train them to get used to your system and with their new colleagues. Doing that remotely is time-consuming, difficult and it is doubtful they can get much done over prolonged periods of time. That is, of course, assuming they are a good fit for your company in the first place. Making a proper judgement of that during the first weeks of employment is very difficult.
Your clients may have far less work for you due to the Coronavirus, so hiring someone new may not be necessary.
If they're all working from home as well and/or have less work going on due to their own clients, and whatever else is going on down the line,your services may be needed less. Maybe there won't be any new projects for a while. Do take that into account.