Linked forms

I have two Records: Account and Installment.

One Account have at least one installment and one installment have one and only one installment. The idea is: when an user creates one Account, he informs the total value of the account and the number of installments and then the system automatically creates each installment (if account have 4 installments and the total value is 1000, system will create 4 installments with 250 value each).
When user deletes an account, it should delete all installments associated.

How can i do this in a way that the user don't interact with the installment form, because i want it to be created by the system. I want the user only to pay each installment individually (in the installment report has a button to pay for each installment).

It's possible to show a list of Installments on the Account report and right there the user can just pay each installment without interacting (Creating, updating or deleting) with them?

If there's an easier way to do this, please help me.