1. Cardholder qualification: You need to ensure that you are a credit card holder of China Construction Bank, and only customers with CCB credit cards can enjoy the installment service of CCB.

2. Login to online banking or mobile banking: use CCB credit card account number and password to login to online banking or mobile banking application of CCB.

3. Select the installment function: after logging in, find and select the related options of "installment" or "credit card installment" in the menu.

4. View installment products: You can view the list of available installment products, which usually displays different installment cycles and interest rate options.

5. Select the installment item: select the consumption item you want to pay by installment, and determine the required installment period and payment method.

6. Submit the application: fill in the necessary information such as installment amount and number of installments and submit the application.

7. Review and confirmation: CCB will review the installment application and generally give the approval result in a short time.

8. Installment payment: If the installment application is approved, CCB will deduct the installment amount to the credit card account on schedule according to the selected payment method.