Alright, let's work through 6671 times 9952 step by step
6671 × 9952 = 9952 × (6671)
+ 9952 × 1 producing 9952
+ 9952 × 70 resulting in 696640
+ 9952 × 600 what gives us 5971200
+ 9952 × 6000 yielding 59712000

= 66389792
