Bathroom demolition: process
Not to say that this work is difficult, but it has some nuances.
First of all, we should definitely turn off the water, hot and cold.
Next, dismantle the bathtub drain, and do it carefully, because it is quite realistic that it will come in handy for new plumbing.
After, the dismantling of the faucet in the bathroom, which is very simple, by turning off the water supply to the faucet and unscrewing it from the bathtub or a special frame. After, a respirator, gloves, boots, goggles, thick clothing, a piece of burlap and a little force to break the bath and take it to the trash.
In principle, this question is closed, and it remains only to proceed with the repair or installation of a new bath.