No problem, we've got 4627 and 4500 to multiply
4627 × 4500 = 4500 × (4627)
+ 4500 × 7 giving us 31500
+ 4500 × 20 that equals 90000
+ 4500 × 600 that equals 2700000
+ 4500 × 4000 yielding 18000000

= 20821500
