I guess that's a problem then, I always thought FRB means a bank lends more than it's deposits, meaning they create money out of thin air, something which we know is damn near impossible with bitcoin. Lending out a % of deposits != FRB to me.
Your understanding is wrong. A bank cannot lend out more than its deposits. In fact, the reserve ratio is what specifies how much they can lend out. They are allowed to lend (in the UK) 97% of deposits.
Let me explain where the money "creation" comes from though: imagine there is only one bank in the universe. Imagine also that we have no such thing as cash, that it is all numbers on a screen. The bank starts with $100,000 of its own. Alice wants to borrow $100,000 to buy Bob's house. The bank agrees, and creates a $100,000 asset in the form of the loan to Alice; and a $100,000 liability in the form of a liability to Bob's current account. That is to say that Bob has $100,000 on deposit, the bank has $100,000 in equity and has loaned $100,000 to Alice. That is a reserve ratio of 100,000/200,000 = 50%.
Go again. Charlie buys Daves house. Charlie owes the bank $100,000; Dave is owed $100,000 by the bank (and hence has $100,000) on deposit.
Total deposits and equity = $300,000
Total loaned = $200,000
Reserve ratio = 66%
At no time does the bank lend more than it has on deposit. Money is "created" by the act of borrowing. If no one was willing to borrow then no money "creation" would take place.