Alright, let's work through 8687 times 8815 step by step
8687 × 8815 = 8815 × (8687)
+ 8815 × 7 giving us 61705
+ 8815 × 80 giving us 705200
+ 8815 × 600 resulting in 5289000
+ 8815 × 8000 giving us 70520000

= 76575905
