This kind of assumes that you're trying to crack a password with the operating assumption that words are indeed not used, that every character is random, and that you wouldn't use some sort of word library to construct passwords.
No, it doesn't. It assume that you know exactly that the password is a Diceware password. The standard word list has 7776 entries, giving 7776^6 ~ 2.2*10^23 combinations for a 6 word passphrase.
