Alright, let's work through 7647 times 9623 step by step
7647 × 9623 = 9623 × (7647)
+ 9623 × 7 yielding 67361
+ 9623 × 40 producing 384920
+ 9623 × 600 resulting in 5773800
+ 9623 × 7000 what gives us 67361000

= 73587081
