Let's calculate 3642 x 7660
3642 × 7660 = 7660 × (3642)
+ 7660 × 2 that is equal 15320
+ 7660 × 40 that is equal 306400
+ 7660 × 600 that is equal 4596000
+ 7660 × 3000 producing 22980000

= 27897720
