Alright, let's work through 1966 times 9977 step by step
1966 × 9977 = 9977 × (1966)
+ 9977 × 6 which equals 59862
+ 9977 × 60 which equals 598620
+ 9977 × 900 that is equal 8979300
+ 9977 × 1000 yielding 9977000

= 19614782
