No problem, we've got 5428 and 1002 to multiply
5428 × 1002 = 1002 × (5428)
+ 1002 × 8 which equals 8016
+ 1002 × 20 that equals 20040
+ 1002 × 400 yielding 400800
+ 1002 × 5000 giving us 5010000

= 5438856
