Alright, let's work through 6424 times 4210 step by step
6424 × 4210 = 4210 × (6424)
+ 4210 × 4 what gives us 16840
+ 4210 × 20 resulting in 84200
+ 4210 × 400 yielding 1684000
+ 4210 × 6000 that equals 25260000

= 27045040
