We're going to solve 2423 multiplied by 1643
2423 × 1643 = 1643 × (2423)
+ 1643 × 3 that is equal 4929
+ 1643 × 20 giving us 32860
+ 1643 × 400 giving us 657200
+ 1643 × 2000 which equals 3286000

= 3980989
