Alright, let's work through 7990 times 8388 step by step
7990 × 8388 = 8388 × (7990)
+ 8388 × 0 producing 0
+ 8388 × 90 giving us 754920
+ 8388 × 900 resulting in 7549200
+ 8388 × 7000 that results in 58716000

= 67020120
