Alright, let's work through 3090 times 9086 step by step
3090 × 9086 = 9086 × (3090)
+ 9086 × 0 that equals 0
+ 9086 × 90 which equals 817740
+ 9086 × 000 producing 0
+ 9086 × 3000 producing 27258000

= 28075740
