We're going to solve 3605 multiplied by 1666
3605 × 1666 = 1666 × (3605)
+ 1666 × 5 resulting in 8330
+ 1666 × 00 that results in 0
+ 1666 × 600 what gives us 999600
+ 1666 × 3000 what gives us 4998000

= 6005930
