Alright, let's work through 2108 times 9977 step by step
2108 × 9977 = 9977 × (2108)
+ 9977 × 8 resulting in 79816
+ 9977 × 00 producing 0
+ 9977 × 100 producing 997700
+ 9977 × 2000 that is equal 19954000

= 21031516
