We're going to solve 8137 multiplied by 8378
8137 × 8378 = 8378 × (8137)
+ 8378 × 7 yielding 58646
+ 8378 × 30 that results in 251340
+ 8378 × 100 yielding 837800
+ 8378 × 8000 what gives us 67024000

= 68171786
