We're going to solve 3658 multiplied by 7686
3658 × 7686 = 7686 × (3658)
+ 7686 × 8 yielding 61488
+ 7686 × 50 which equals 384300
+ 7686 × 600 resulting in 4611600
+ 7686 × 3000 which equals 23058000

= 28115388
