We're going to solve 3873 multiplied by 2658
3873 × 2658 = 2658 × (3873)
+ 2658 × 3 that is equal 7974
+ 2658 × 70 that equals 186060
+ 2658 × 800 yielding 2126400
+ 2658 × 3000 giving us 7974000

= 10294434
