Alright, let's work through 8508 times 1513 step by step
8508 × 1513 = 1513 × (8508)
+ 1513 × 8 that is equal 12104
+ 1513 × 00 that is equal 0
+ 1513 × 500 giving us 756500
+ 1513 × 8000 giving us 12104000

= 12872604
