Alright, let's work through 1997 times 5865 step by step
1997 × 5865 = 5865 × (1997)
+ 5865 × 7 resulting in 41055
+ 5865 × 90 that equals 527850
+ 5865 × 900 that is equal 5278500
+ 5865 × 1000 yielding 5865000

= 11712405
