Alright, let's work through 8636 times 9875 step by step
8636 × 9875 = 9875 × (8636)
+ 9875 × 6 that is equal 59250
+ 9875 × 30 that results in 296250
+ 9875 × 600 giving us 5925000
+ 9875 × 8000 producing 79000000

= 85280500
