Alright, let's work through 5442 times 3689 step by step
5442 × 3689 = 3689 × (5442)
+ 3689 × 2 that is equal 7378
+ 3689 × 40 what gives us 147560
+ 3689 × 400 resulting in 1475600
+ 3689 × 5000 producing 18445000

= 20075538
