Alright, let's work through 6399 times 1416 step by step
6399 × 1416 = 1416 × (6399)
+ 1416 × 9 that equals 12744
+ 1416 × 90 that results in 127440
+ 1416 × 300 that results in 424800
+ 1416 × 6000 that is equal 8496000

= 9060984
