We're going to solve 2443 multiplied by 3120
2443 × 3120 = 3120 × (2443)
+ 3120 × 3 giving us 9360
+ 3120 × 40 that equals 124800
+ 3120 × 400 giving us 1248000
+ 3120 × 2000 what gives us 6240000

= 7622160
