Alright, let's work through 3891 times 7762 step by step
3891 × 7762 = 7762 × (3891)
+ 7762 × 1 yielding 7762
+ 7762 × 90 that is equal 698580
+ 7762 × 800 producing 6209600
+ 7762 × 3000 producing 23286000

= 30201942
