Battery problem

The best way for you to proceed is to lift the car up, here is a guide to help you do it safely.

https://www.2carpros.com/articles/jack-up-and-lift-your-car-safely

and you will need a set of jumper cables to attach to engine ground and the positive starter lug.

Here is a guide but you will need a different connection like I have described above.

https://www.2carpros.com/articles/how-to-jump-start-car-battery-using-jumper-cables

Once the car has power once the doors and then replace the battery.

https://www.2carpros.com/articles/how-to-replace-a-car-battery

Please let us know what happens.

Cheers, Ken