No problem, we've got 4223 and 5528 to multiply
4223 × 5528 = 5528 × (4223)
+ 5528 × 3 which equals 16584
+ 5528 × 20 what gives us 110560
+ 5528 × 200 what gives us 1105600
+ 5528 × 4000 that is equal 22112000

= 23344744
