Alright, let's work through 8129 times 6508 step by step
8129 × 6508 = 6508 × (8129)
+ 6508 × 9 yielding 58572
+ 6508 × 20 what gives us 130160
+ 6508 × 100 what gives us 650800
+ 6508 × 8000 yielding 52064000

= 52903532
