Alright, let's work through 6689 times 8713 step by step
6689 × 8713 = 8713 × (6689)
+ 8713 × 9 producing 78417
+ 8713 × 80 yielding 697040
+ 8713 × 600 that equals 5227800
+ 8713 × 6000 producing 52278000

= 58281257
