Alright, let's work through 8392 times 8339 step by step
8392 × 8339 = 8339 × (8392)
+ 8339 × 2 yielding 16678
+ 8339 × 90 that results in 750510
+ 8339 × 300 that equals 2501700
+ 8339 × 8000 producing 66712000

= 69980888
