Alright, let's work through 6436 times 2838 step by step
6436 × 2838 = 2838 × (6436)
+ 2838 × 6 giving us 17028
+ 2838 × 30 resulting in 85140
+ 2838 × 400 that results in 1135200
+ 2838 × 6000 that equals 17028000

= 18265368
