Alright, let's work through 6423 times 1228 step by step
6423 × 1228 = 1228 × (6423)
+ 1228 × 3 which equals 3684
+ 1228 × 20 that results in 24560
+ 1228 × 400 that results in 491200
+ 1228 × 6000 resulting in 7368000

= 7887444
