We're going to solve 1243 multiplied by 2821
1243 × 2821 = 2821 × (1243)
+ 2821 × 3 which equals 8463
+ 2821 × 40 which equals 112840
+ 2821 × 200 that is equal 564200
+ 2821 × 1000 yielding 2821000

= 3506503
