We're going to solve 2121 multiplied by 4870
2121 × 4870 = 4870 × (2121)
+ 4870 × 1 yielding 4870
+ 4870 × 20 what gives us 97400
+ 4870 × 100 yielding 487000
+ 4870 × 2000 giving us 9740000

= 10329270
