Alright, let's work through 6399 times 8282 step by step
6399 × 8282 = 8282 × (6399)
+ 8282 × 9 producing 74538
+ 8282 × 90 yielding 745380
+ 8282 × 300 that equals 2484600
+ 8282 × 6000 resulting in 49692000

= 52996518
