Alright, let's work through 3961 times 8565 step by step
3961 × 8565 = 8565 × (3961)
+ 8565 × 1 that equals 8565
+ 8565 × 60 what gives us 513900
+ 8565 × 900 that is equal 7708500
+ 8565 × 3000 what gives us 25695000

= 33925965
