Alright, let's work through 8491 times 7972 step by step
8491 × 7972 = 7972 × (8491)
+ 7972 × 1 giving us 7972
+ 7972 × 90 that equals 717480
+ 7972 × 400 yielding 3188800
+ 7972 × 8000 resulting in 63776000

= 67690252
