No problem, we've got 4507 and 4870 to multiply
4507 × 4870 = 4870 × (4507)
+ 4870 × 7 which equals 34090
+ 4870 × 00 yielding 0
+ 4870 × 500 giving us 2435000
+ 4870 × 4000 that is equal 19480000

= 21949090
