No problem, we've got 6403 and 8538 to multiply
6403 × 8538 = 8538 × (6403)
+ 8538 × 3 that equals 25614
+ 8538 × 00 producing 0
+ 8538 × 400 which equals 3415200
+ 8538 × 6000 giving us 51228000

= 54668814
