We're going to solve 1233 multiplied by 9839
1233 × 9839 = 9839 × (1233)
+ 9839 × 3 that is equal 29517
+ 9839 × 30 giving us 295170
+ 9839 × 200 that is equal 1967800
+ 9839 × 1000 resulting in 9839000

= 12131487
