Alright, let's work through 5625 times 6404 step by step
5625 × 6404 = 6404 × (5625)
+ 6404 × 5 producing 32020
+ 6404 × 20 what gives us 128080
+ 6404 × 600 yielding 3842400
+ 6404 × 5000 yielding 32020000

= 36022500
