We're going to solve 3425 multiplied by 8370
3425 × 8370 = 8370 × (3425)
+ 8370 × 5 giving us 41850
+ 8370 × 20 producing 167400
+ 8370 × 400 what gives us 3348000
+ 8370 × 3000 giving us 25110000

= 28667250
