Alright, let's work through 8072 times 8256 step by step
8072 × 8256 = 8256 × (8072)
+ 8256 × 2 what gives us 16512
+ 8256 × 70 that is equal 577920
+ 8256 × 000 yielding 0
+ 8256 × 8000 what gives us 66048000

= 66642432
