Alright, let's work through 1509 times 9108 step by step
1509 × 9108 = 9108 × (1509)
+ 9108 × 9 what gives us 81972
+ 9108 × 00 resulting in 0
+ 9108 × 500 resulting in 4554000
+ 9108 × 1000 what gives us 9108000

= 13743972
