Alright, let's work through 1978 times 5997 step by step
1978 × 5997 = 5997 × (1978)
+ 5997 × 8 resulting in 47976
+ 5997 × 70 that is equal 419790
+ 5997 × 900 that results in 5397300
+ 5997 × 1000 that results in 5997000

= 11862066
