No problem, we've got 6423 and 8318 to multiply
6423 × 8318 = 8318 × (6423)
+ 8318 × 3 which equals 24954
+ 8318 × 20 yielding 166360
+ 8318 × 400 producing 3327200
+ 8318 × 6000 that equals 49908000

= 53426514
