Alright, let's work through 6664 times 9679 step by step
6664 × 9679 = 9679 × (6664)
+ 9679 × 4 what gives us 38716
+ 9679 × 60 that results in 580740
+ 9679 × 600 that is equal 5807400
+ 9679 × 6000 what gives us 58074000

= 64500856
