Alright, let's work through 3687 times 5527 step by step
3687 × 5527 = 5527 × (3687)
+ 5527 × 7 which equals 38689
+ 5527 × 80 what gives us 442160
+ 5527 × 600 that results in 3316200
+ 5527 × 3000 that results in 16581000

= 20378049
