Alright, let's work through 3690 times 4490 step by step
3690 × 4490 = 4490 × (3690)
+ 4490 × 0 which equals 0
+ 4490 × 90 producing 404100
+ 4490 × 600 that is equal 2694000
+ 4490 × 3000 giving us 13470000

= 16568100
