It means that the repayment is divided into 6 installments, and the handling fee is 0.53%.
For example, 6,000 yuan is divided into 6 installments, and the principal is repaid each month at 1,000 yuan. The handling fee is 31.8 yuan per month. Repay 1031.8 yuan on the first day of every month. This 0.53 is the installment payment fee.