Alright, let's work through 1992 times 6304 step by step
1992 × 6304 = 6304 × (1992)
+ 6304 × 2 producing 12608
+ 6304 × 90 giving us 567360
+ 6304 × 900 that is equal 5673600
+ 6304 × 1000 what gives us 6304000

= 12557568
