We're going to solve 1377 multiplied by 8688
1377 × 8688 = 8688 × (1377)
+ 8688 × 7 that equals 60816
+ 8688 × 70 which equals 608160
+ 8688 × 300 producing 2606400
+ 8688 × 1000 giving us 8688000

= 11963376
