Alright, let's work through 5287 times 872 step by step
5287 × 872 = 872 × (5287)
+ 872 × 7 that results in 6104
+ 872 × 80 resulting in 69760
+ 872 × 200 yielding 174400
+ 872 × 5000 that is equal 4360000

= 4610264
