Alright, let's work through 4501 times 4399 step by step
4501 × 4399 = 4399 × (4501)
+ 4399 × 1 giving us 4399
+ 4399 × 00 producing 0
+ 4399 × 500 which equals 2199500
+ 4399 × 4000 yielding 17596000

= 19799899
