Alright, let's work through 1664 times 9290 step by step
1664 × 9290 = 9290 × (1664)
+ 9290 × 4 that equals 37160
+ 9290 × 60 what gives us 557400
+ 9290 × 600 giving us 5574000
+ 9290 × 1000 resulting in 9290000

= 15458560
