Alright, let's work through 7998 times 1689 step by step
7998 × 1689 = 1689 × (7998)
+ 1689 × 8 yielding 13512
+ 1689 × 90 yielding 152010
+ 1689 × 900 that results in 1520100
+ 1689 × 7000 resulting in 11823000

= 13508622
