Alright, let's work through 5728 times 5870 step by step
5728 × 5870 = 5870 × (5728)
+ 5870 × 8 resulting in 46960
+ 5870 × 20 that is equal 117400
+ 5870 × 700 giving us 4109000
+ 5870 × 5000 yielding 29350000

= 33623360
