Alright, let's work through 8712 times 2608 step by step
8712 × 2608 = 2608 × (8712)
+ 2608 × 2 yielding 5216
+ 2608 × 10 giving us 26080
+ 2608 × 700 which equals 1825600
+ 2608 × 8000 which equals 20864000

= 22720896
