Alright, let's work through 6665 times 6536 step by step
6665 × 6536 = 6536 × (6665)
+ 6536 × 5 what gives us 32680
+ 6536 × 60 producing 392160
+ 6536 × 600 that is equal 3921600
+ 6536 × 6000 producing 39216000

= 43562440
