We're going to solve 5091 multiplied by 3964
5091 × 3964 = 3964 × (5091)
+ 3964 × 1 that equals 3964
+ 3964 × 90 resulting in 356760
+ 3964 × 000 which equals 0
+ 3964 × 5000 that results in 19820000

= 20180724
