Alright, let's work through 7666 times 2406 step by step
7666 × 2406 = 2406 × (7666)
+ 2406 × 6 giving us 14436
+ 2406 × 60 producing 144360
+ 2406 × 600 producing 1443600
+ 2406 × 7000 resulting in 16842000

= 18444396
