Alright, let's work through 2851 times 7368 step by step
2851 × 7368 = 7368 × (2851)
+ 7368 × 1 that results in 7368
+ 7368 × 50 that is equal 368400
+ 7368 × 800 producing 5894400
+ 7368 × 2000 which equals 14736000

= 21006168
