Alright, let's work through 3977 times 6107 step by step
3977 × 6107 = 6107 × (3977)
+ 6107 × 7 producing 42749
+ 6107 × 70 what gives us 427490
+ 6107 × 900 yielding 5496300
+ 6107 × 3000 that is equal 18321000

= 24287539
