Alright, let's work through 3965 times 5508 step by step
3965 × 5508 = 5508 × (3965)
+ 5508 × 5 that equals 27540
+ 5508 × 60 that equals 330480
+ 5508 × 900 giving us 4957200
+ 5508 × 3000 that equals 16524000

= 21839220
