Alright, let's work through 8559 times 75 step by step
8559 × 75 = 75 × (8559)
+ 75 × 9 which equals 675
+ 75 × 50 what gives us 3750
+ 75 × 500 which equals 37500
+ 75 × 8000 resulting in 600000

= 641925
