We're going to solve 7678 multiplied by 4009
7678 × 4009 = 4009 × (7678)
+ 4009 × 8 what gives us 32072
+ 4009 × 70 resulting in 280630
+ 4009 × 600 resulting in 2405400
+ 4009 × 7000 giving us 28063000

= 30781102
