Alright, let's work through 1877 times 5237 step by step
1877 × 5237 = 5237 × (1877)
+ 5237 × 7 resulting in 36659
+ 5237 × 70 that equals 366590
+ 5237 × 800 what gives us 4189600
+ 5237 × 1000 resulting in 5237000

= 9829849
