Alright, let's work through 8645 times 9387 step by step
8645 × 9387 = 9387 × (8645)
+ 9387 × 5 that is equal 46935
+ 9387 × 40 that equals 375480
+ 9387 × 600 yielding 5632200
+ 9387 × 8000 what gives us 75096000

= 81150615
