Alright, let's work through 6164 times 815 step by step
6164 × 815 = 815 × (6164)
+ 815 × 4 which equals 3260
+ 815 × 60 that equals 48900
+ 815 × 100 resulting in 81500
+ 815 × 6000 which equals 4890000

= 5023660
