Possible Clues:

• Bank bailout unit
• One followed by nine zeros
• A large number put the charge on account
• Note, one relating to large amount
• Large sum in gold university's transferred to Italy
• Thousand million
• Invoice most of island community, producing a large sum of money
• William one working for large amount
• A follower in a bad way is charged for an enormous amount
• Large number working to support William I?