No problem, we've got 4023 and 5026 to multiply
4023 × 5026 = 5026 × (4023)
+ 5026 × 3 what gives us 15078
+ 5026 × 20 producing 100520
+ 5026 × 000 yielding 0
+ 5026 × 4000 that results in 20104000

= 20219598
