No problem, we've got 1509 and 4530 to multiply
1509 × 4530 = 4530 × (1509)
+ 4530 × 9 that equals 40770
+ 4530 × 00 which equals 0
+ 4530 × 500 that equals 2265000
+ 4530 × 1000 giving us 4530000

= 6835770
