Alright, let's work through 6723 times 1401 step by step
6723 × 1401 = 1401 × (6723)
+ 1401 × 3 producing 4203
+ 1401 × 20 resulting in 28020
+ 1401 × 700 that results in 980700
+ 1401 × 6000 yielding 8406000

= 9418923
