We're going to solve 1243 multiplied by 3918
1243 × 3918 = 3918 × (1243)
+ 3918 × 3 that equals 11754
+ 3918 × 40 that is equal 156720
+ 3918 × 200 yielding 783600
+ 3918 × 1000 which equals 3918000

= 4870074
