Alright, let's work through 9961 times 3977 step by step
9961 × 3977 = 3977 × (9961)
+ 3977 × 1 that is equal 3977
+ 3977 × 60 resulting in 238620
+ 3977 × 900 yielding 3579300
+ 3977 × 9000 producing 35793000

= 39614897
