Alright, let's work through 8690 times 815 step by step
8690 × 815 = 815 × (8690)
+ 815 × 0 giving us 0
+ 815 × 90 giving us 73350
+ 815 × 600 which equals 489000
+ 815 × 8000 producing 6520000

= 7082350
