No problem, we've got 4112 and 5209 to multiply
4112 × 5209 = 5209 × (4112)
+ 5209 × 2 that equals 10418
+ 5209 × 10 what gives us 52090
+ 5209 × 100 yielding 520900
+ 5209 × 4000 yielding 20836000

= 21419408
