Alright, let's work through 1663 times 600 step by step
1663 × 600 = 600 × (1663)
+ 600 × 3 giving us 1800
+ 600 × 60 that results in 36000
+ 600 × 600 giving us 360000
+ 600 × 1000 that results in 600000

= 997800
