We're going to solve 1215 multiplied by 3861
1215 × 3861 = 3861 × (1215)
+ 3861 × 5 that is equal 19305
+ 3861 × 10 which equals 38610
+ 3861 × 200 yielding 772200
+ 3861 × 1000 that is equal 3861000

= 4691115
