Alright, let's work through 6661 times 8623 step by step
6661 × 8623 = 8623 × (6661)
+ 8623 × 1 resulting in 8623
+ 8623 × 60 which equals 517380
+ 8623 × 600 resulting in 5173800
+ 8623 × 6000 that equals 51738000

= 57437803
