Alright, let's work through 1099 times 5998 step by step
1099 × 5998 = 5998 × (1099)
+ 5998 × 9 yielding 53982
+ 5998 × 90 that results in 539820
+ 5998 × 000 what gives us 0
+ 5998 × 1000 yielding 5998000

= 6591802
