No problem, we've got 4992 and 4359 to multiply
4992 × 4359 = 4359 × (4992)
+ 4359 × 2 that equals 8718
+ 4359 × 90 that equals 392310
+ 4359 × 900 what gives us 3923100
+ 4359 × 4000 yielding 17436000

= 21760128
