Alright, let's work through 2871 times 7767 step by step
2871 × 7767 = 7767 × (2871)
+ 7767 × 1 which equals 7767
+ 7767 × 70 that is equal 543690
+ 7767 × 800 resulting in 6213600
+ 7767 × 2000 which equals 15534000

= 22299057
