If you owe the bank 6,543,800 yuan, you can negotiate with the bank to repay it in installments. If it is really unable to repay, you can sue the bank, actively fulfill the repayment obligation after the court decision, and repay according to the court decision. Debt disputes are civil disputes and will not go to jail. Article 117 of the Civil Procedure Law of People's Republic of China (PRC) * * * To take compulsory measures against acts that obstruct civil proceedings, it must be decided by the people's court. Any unit or individual who illegally detains others or illegally detains others' property to recover debts shall be investigated for criminal responsibility according to law, or be detained or fined. Article 214 Where a creditor requests the debtor to pay money or securities, it may apply to the grassroots people's court with jurisdiction for a payment order if the following conditions are met: (1) There is no other debt dispute between the creditor and the debtor; (2) Payment orders can be served on the debtor. The application order shall specify the amount of money or securities required and the facts and evidence on which it is based.