No problem, we've got 4001 and 5006 to multiply
4001 × 5006 = 5006 × (4001)
+ 5006 × 1 that results in 5006
+ 5006 × 00 giving us 0
+ 5006 × 000 that equals 0
+ 5006 × 4000 resulting in 20024000

= 20029006
