Alright, let's work through 8615 times 8360 step by step
8615 × 8360 = 8360 × (8615)
+ 8360 × 5 that results in 41800
+ 8360 × 10 what gives us 83600
+ 8360 × 600 resulting in 5016000
+ 8360 × 8000 giving us 66880000

= 72021400
