Alright, let's work through 3777 times 5337 step by step
3777 × 5337 = 5337 × (3777)
+ 5337 × 7 that results in 37359
+ 5337 × 70 producing 373590
+ 5337 × 700 that results in 3735900
+ 5337 × 3000 that results in 16011000

= 20157849
