Alright, let's work through 8812 times 9881 step by step
8812 × 9881 = 9881 × (8812)
+ 9881 × 2 that equals 19762
+ 9881 × 10 giving us 98810
+ 9881 × 800 that is equal 7904800
+ 9881 × 8000 yielding 79048000

= 87071372
