Alright, let's work through 9009 times 8127 step by step
9009 × 8127 = 8127 × (9009)
+ 8127 × 9 yielding 73143
+ 8127 × 00 giving us 0
+ 8127 × 000 giving us 0
+ 8127 × 9000 giving us 73143000

= 73216143
