How does RC4 work?

Question

Encryption

An explanation is required without mathematical formulas, I only know RSA and DH algorithms

Answer 1

1. An array is created from all possible byte values ​​(i.e. 256 elements)
   The pseudo-random number generation algorithm rearranges the elements in the array at least every 256 passes to mess up the statistical analysis.
   We draw a picture of the session: the parties exchange a key, create an identical array of data, and using the algorithm, the sender encrypts, and the recipient decrypts the message, while at all iterations the array for both sides will be in the same state.