Please break down step by step how the circled figure was calculated. How did they get 6.41766?

Annual withdrawal =$31,500 Period =10 years Interest rate =9% a) First withdrawal at year-end. Present value of cash flows = Annual withdrawal * present value of an rdinary annuity Explanation: present value of an ordinary annuity 10 years, 9%=6.41766 Present value of cash flows =$31,5006.41766 =$202,156.29 Present value of cash flows =$202,156