We're going to solve 8140 multiplied by 2460
8140 × 2460 = 2460 × (8140)
+ 2460 × 0 yielding 0
+ 2460 × 40 what gives us 98400
+ 2460 × 100 that results in 246000
+ 2460 × 8000 giving us 19680000

= 20024400
