That doesn't make any sense. You've mixed up macroeconomics and microeconomics. A single bank cannot lend more than it has in deposits. However, in an economy with many lenders and borrowers, a deposit (or really any kind of expenditure) can be reinvested fractionally many times, enlarging the money supply by more than its nominal value. Also, the multiplier "rule" of taking the reciprocal of the reserve rate is more of a rough estimate, since individual borrowers may not spend all of the money they have borrowed.