We're going to solve 1999 multiplied by 5023
1999 × 5023 = 5023 × (1999)
+ 5023 × 9 yielding 45207
+ 5023 × 90 that results in 452070
+ 5023 × 900 producing 4520700
+ 5023 × 1000 which equals 5023000

= 10040977
