We're going to solve 3991 multiplied by 2386
3991 × 2386 = 2386 × (3991)
+ 2386 × 1 yielding 2386
+ 2386 × 90 that equals 214740
+ 2386 × 900 giving us 2147400
+ 2386 × 3000 that results in 7158000

= 9522526
