We're going to solve 5387 multiplied by 3807
5387 × 3807 = 3807 × (5387)
+ 3807 × 7 resulting in 26649
+ 3807 × 80 that is equal 304560
+ 3807 × 300 that is equal 1142100
+ 3807 × 5000 that results in 19035000

= 20508309
