Alright, let's work through 2622 times 7807 step by step
2622 × 7807 = 7807 × (2622)
+ 7807 × 2 giving us 15614
+ 7807 × 20 producing 156140
+ 7807 × 600 that results in 4684200
+ 7807 × 2000 which equals 15614000

= 20469954
