We're going to solve 5821 multiplied by 7778
5821 × 7778 = 7778 × (5821)
+ 7778 × 1 what gives us 7778
+ 7778 × 20 giving us 155560
+ 7778 × 800 resulting in 6222400
+ 7778 × 5000 producing 38890000

= 45275738
