Alright, let's work through 6487 times 4072 step by step
6487 × 4072 = 4072 × (6487)
+ 4072 × 7 that equals 28504
+ 4072 × 80 resulting in 325760
+ 4072 × 400 yielding 1628800
+ 4072 × 6000 yielding 24432000

= 26415064
