No problem, we've got 4707 and 9000 to multiply
4707 × 9000 = 9000 × (4707)
+ 9000 × 7 that equals 63000
+ 9000 × 00 what gives us 0
+ 9000 × 700 yielding 6300000
+ 9000 × 4000 that equals 36000000

= 42363000
