Alright, let's work through 1386 times 7663 step by step
1386 × 7663 = 7663 × (1386)
+ 7663 × 6 yielding 45978
+ 7663 × 80 what gives us 613040
+ 7663 × 300 producing 2298900
+ 7663 × 1000 that is equal 7663000

= 10620918
