Alright, let's work through 7666 times 6374 step by step
7666 × 6374 = 6374 × (7666)
+ 6374 × 6 what gives us 38244
+ 6374 × 60 producing 382440
+ 6374 × 600 that equals 3824400
+ 6374 × 7000 giving us 44618000

= 48863084
