Alright, let's work through 3401 times 6436 step by step
3401 × 6436 = 6436 × (3401)
+ 6436 × 1 what gives us 6436
+ 6436 × 00 yielding 0
+ 6436 × 400 what gives us 2574400
+ 6436 × 3000 giving us 19308000

= 21888836
