Encryption

[abc]

Generally, How do you break encryption; I know some encryption sequences you can't break (or you can, they'll just take a super long time.) but my friend has a password encryption, and I want to try to break it, How would I go about this.

Right now i'm checking for repetition in letters. But I doubt i'll find anything much. I do know that numbers aren't encrypted, they're just added behind the encrypted password divided with a '$' [Every number is a decimal EX. 0.5435435.43543.2423425.3432]

[abc]

Never mind, I've cracked it.

[Sidoh]

lol ::)