Alright, let's work through 4201 times 5579 step by step
4201 × 5579 = 5579 × (4201)
+ 5579 × 1 what gives us 5579
+ 5579 × 00 yielding 0
+ 5579 × 200 giving us 1115800
+ 5579 × 4000 producing 22316000

= 23437379
