http://opsec3u4qp6dpif5ckkerqxyrovdyk2zsk3pam5f65nlqor2lurkwzyd.onion/guide/about-tor/how-tor-works/clearnet-websites
Creating a Tor circuit and interaction between nodes basically works as follows: I hope you are paranoidal enough to dive into the depths and start learning this difficult topic. To understand this part you should have at least some basic knowledge of TCP , TLS , DH , RSA , AES , SHA and so on. Read this part again or ask me a question if you didn't got something.