Alright, let's work through 5469 times 3639 step by step
5469 × 3639 = 3639 × (5469)
+ 3639 × 9 which equals 32751
+ 3639 × 60 which equals 218340
+ 3639 × 400 that equals 1455600
+ 3639 × 5000 producing 18195000

= 19901691
