It is possible that 4 small plants were placed in a single container to make a more attractive and saleable plant. If so, they could be separated. Tip the azalea out of its container and check. If you find that there are not 4 separate plants but 4 stems emerging from one root ball - that would be the natural growth pattern - you can just return the whole thing to its pot.

Ok. Thank you so much!!!..

If you want to separate them, wait until after bloom. Use a sharp knife to slice between the stems. Pot up the four plants in slightly larger pots using a good potting soil with lots of perlite added.

Keep in warm, humid and shady environment until they get established. I'd probably do that in May here when they can be placed outdoors in shade with rains and humidity. But I don't know where you live. If in the desert, then maybe not such a good idea to wait until May.

There will be a lot of root loss, so you may have to remove a bit of foliage to balance out the reduced transpiration issues. It will be almost like taking cuttings. If you are in a very dry region, you might have to put them in large plastic bags to hold in humidity until they grow more roots.

Just to be clear, there is a big difference between separating individual azalea plants growing in one pot and division of a single azalea. There are some mostly deciduous azaleas that grow in a stoloniferous manner. These can be divided. Florist azaleas are not this type and attempting to divide one into many will almost certainly kill it.

I agree with akamainegrower, that most likely the so-called 'florist azaleas' are grown as multiple cuttings per pot.

This is so that the pot fills out faster and becomes marketable sooner. It's all about getting an attractive plant to market fast and in one season from cuttings.

Frankly though, these are 'enjoy-and-throw-out' plants. Marketers know that most people can't or won't keep these growing. They are incredibly root-bound and thirsty plants ... and many are lost to dehydration from inadequate watering, and too-dry or too-hot conditions. And they are too tender for most people to grow in the ground outdoors.

Having said that, I was able to keep one alive for about 2 seasons under lights, until finally I tired of watering it almost every day! and I let it go.

If I were you, I'd just pot up the entire thing into a larger pot (rather than divide). Tease the roots to try to get that solid fibrous root ball to grow out into the new soil and hope for the best! It will be enough of a challenge even doing this!