Alright, let's work through 3390 times 6566 step by step
3390 × 6566 = 6566 × (3390)
+ 6566 × 0 that equals 0
+ 6566 × 90 which equals 590940
+ 6566 × 300 that results in 1969800
+ 6566 × 3000 producing 19698000

= 22258740
