There are about 69 in the a1 and about 76 in the a2 and a3 models.
Unitl you define how far down you want to take it for cleaning, the question can't be answered.
Cleaning a Tokarev gun is simple. All you have to do is have the cleaning supplies and take it apart.
No need to for regular cleaning.
Use the Owners manual for safe cleaning and breakdown instructions. They are available at the Browning link below and it is free.
take the elevator apart
It doesn't need to be taken apart for normal cleaning and maintenance. If you really feel the need to take it apart, get this book: "The S&W Revolver: A Shop Manual" Book by Jerry Kuhnhausen
Ask a gunsmith for assistance or call S&W.
Ordinary revolvers are not intended to be disassembled by the user. It is not required to take them apart for ordinary maintenance and cleaning. Many of thes are also old enough that no owner's manual was every printed. A gunsmith may be of help, or you will wind up with a bag of gun parts at the gunsmith.
In general, revolvers are not intended to be taken apart for routine cleaning and maintenance. I would strongly suggest that you contact a qualified gunsmith for assistance if needed. They are MUCH easier to take apart than to put back together again.
They take them apart and then melt down the parts for lead and copper.
When you take it apart, you alter the configuration of the sights to the gun. If you didn't resight it in, it won't shot anywhere near the right place. However, it should be consistently off; firing "all over" means you might have damaged something in the barrle. Take it apart again, clean it carefully and thoroughly, and inspect all parts of the weapon that you can. Reassemble, resight and test. If it still doesn't shoot straight, take it to a gunsmith.
Take it apart and put other parts from other cars on the original car.