Alright, let's work through 2773 times 6421 step by step
2773 × 6421 = 6421 × (2773)
+ 6421 × 3 which equals 19263
+ 6421 × 70 giving us 449470
+ 6421 × 700 producing 4494700
+ 6421 × 2000 giving us 12842000

= 17805433
