Alright, let's work through 8397 times 3997 step by step
8397 × 3997 = 3997 × (8397)
+ 3997 × 7 which equals 27979
+ 3997 × 90 what gives us 359730
+ 3997 × 300 which equals 1199100
+ 3997 × 8000 yielding 31976000

= 33562809
