Alright, let's work through 5418 times 3687 step by step
5418 × 3687 = 3687 × (5418)
+ 3687 × 8 that results in 29496
+ 3687 × 10 what gives us 36870
+ 3687 × 400 which equals 1474800
+ 3687 × 5000 yielding 18435000

= 19976166
