We're going to solve 3525 multiplied by 8406
3525 × 8406 = 8406 × (3525)
+ 8406 × 5 which equals 42030
+ 8406 × 20 producing 168120
+ 8406 × 500 what gives us 4203000
+ 8406 × 3000 that results in 25218000

= 29631150
