Alright, let's work through 2600 times 8506 step by step
2600 × 8506 = 8506 × (2600)
+ 8506 × 0 yielding 0
+ 8506 × 00 that is equal 0
+ 8506 × 600 yielding 5103600
+ 8506 × 2000 yielding 17012000

= 22115600
