No problem, we've got 5071 and 4151 to multiply
5071 × 4151 = 4151 × (5071)
+ 4151 × 1 producing 4151
+ 4151 × 70 producing 290570
+ 4151 × 000 giving us 0
+ 4151 × 5000 resulting in 20755000

= 21049721
