Alright, let's work through 6444 times 2722 step by step
6444 × 2722 = 2722 × (6444)
+ 2722 × 4 that equals 10888
+ 2722 × 40 producing 108880
+ 2722 × 400 yielding 1088800
+ 2722 × 6000 resulting in 16332000

= 17540568
