The steps to cancel the 58.com account are as follows:
1. First open Baidu and search for "58.com" on Baidu.
2. Then enter the main interface of 58.com and enter your account number and password to log in.
3. Then find the "Customer Service" option in the interface and click to open it with the mouse.
4. Find the "Contact Customer Service" option in the interface and click it.
5. Then enter "I want to cancel the 58.com account" in the input box on the interface to successfully cancel the 58.com account.