Alright, let's work through 3904 times 5564 step by step
3904 × 5564 = 5564 × (3904)
+ 5564 × 4 what gives us 22256
+ 5564 × 00 which equals 0
+ 5564 × 900 that results in 5007600
+ 5564 × 3000 that is equal 16692000

= 21721856
