Alright, let's work through 4891 times 8307 step by step
4891 × 8307 = 8307 × (4891)
+ 8307 × 1 that is equal 8307
+ 8307 × 90 that equals 747630
+ 8307 × 800 resulting in 6645600
+ 8307 × 4000 producing 33228000

= 40629537
