We're going to solve 4145 multiplied by 4878
4145 × 4878 = 4878 × (4145)
+ 4878 × 5 which equals 24390
+ 4878 × 40 what gives us 195120
+ 4878 × 100 which equals 487800
+ 4878 × 4000 which equals 19512000

= 20219310
