Alright, let's work through 2164 times 6278 step by step
2164 × 6278 = 6278 × (2164)
+ 6278 × 4 giving us 25112
+ 6278 × 60 resulting in 376680
+ 6278 × 100 that is equal 627800
+ 6278 × 2000 producing 12556000

= 13585592
