To teach your dog to use the toilet, first place newspapers dampened with your dog's urine around the toilet. Then, when your dog wants to relieve itself, carry it near the toilet and watch it until it finishes. Repeat this process for at least a week; otherwise, your dog will have a hard time learning.
How to teach a dog to use the toilet
First, use newspaper soaked with your dog's urine and place it around the toilet. Dogs will usually choose to defecate where there is a smell of urine and feces.
Secondly, when your dog is circling and sniffing the ground as if it wants to defecate, pick it up and place it near the toilet. Watch it and don't let it run around until it finishes defecating.
Finally, when you see your dog needing to relieve itself, put it near the toilet and watch it finish. Repeat this process for at least a week, otherwise the dog won't learn.