Alright, let's work through 5280 times 4212 step by step
5280 × 4212 = 4212 × (5280)
+ 4212 × 0 that is equal 0
+ 4212 × 80 producing 336960
+ 4212 × 200 what gives us 842400
+ 4212 × 5000 what gives us 21060000

= 22239360
