Alright, let's work through 4987 times 5317 step by step
4987 × 5317 = 5317 × (4987)
+ 5317 × 7 that results in 37219
+ 5317 × 80 that is equal 425360
+ 5317 × 900 resulting in 4785300
+ 5317 × 4000 producing 21268000

= 26515879
