Alright, let's work through 6659 times 9666 step by step
6659 × 9666 = 9666 × (6659)
+ 9666 × 9 giving us 86994
+ 9666 × 50 yielding 483300
+ 9666 × 600 giving us 5799600
+ 9666 × 6000 yielding 57996000

= 64365894
