Alright, let's work through 4091 times 6570 step by step
4091 × 6570 = 6570 × (4091)
+ 6570 × 1 that results in 6570
+ 6570 × 90 producing 591300
+ 6570 × 000 resulting in 0
+ 6570 × 4000 which equals 26280000

= 26877870
