Alright, let's work through 6539 times 8307 step by step
6539 × 8307 = 8307 × (6539)
+ 8307 × 9 what gives us 74763
+ 8307 × 30 producing 249210
+ 8307 × 500 which equals 4153500
+ 8307 × 6000 which equals 49842000

= 54319473
