Alright, let's work through 6402 times 4397 step by step
6402 × 4397 = 4397 × (6402)
+ 4397 × 2 that is equal 8794
+ 4397 × 00 giving us 0
+ 4397 × 400 that results in 1758800
+ 4397 × 6000 yielding 26382000

= 28149594
