Alright, let's work through 7983 times 8100 step by step
7983 × 8100 = 8100 × (7983)
+ 8100 × 3 producing 24300
+ 8100 × 80 producing 648000
+ 8100 × 900 resulting in 7290000
+ 8100 × 7000 what gives us 56700000

= 64662300
