What is the A-Z process of properly removing oneself from the web?

I want to know what the proper way of deleting yourself from the internet would be, as I know that even if you just delete your pictures and account, the data is still out there.

I've researched and found that there are programs that will find where your info is so you can shut it down, but I heard they aren't exactly trustworthy or accurate. I've also found a company who charges 30k to do it?!

So my question is: …

privacy process the web web