Alright, let's work through 5622 times 3687 step by step
5622 × 3687 = 3687 × (5622)
+ 3687 × 2 giving us 7374
+ 3687 × 20 what gives us 73740
+ 3687 × 600 giving us 2212200
+ 3687 × 5000 that equals 18435000

= 20728314
