Alright, let's work through 9128 times 9039 step by step
9128 × 9039 = 9039 × (9128)
+ 9039 × 8 which equals 72312
+ 9039 × 20 what gives us 180780
+ 9039 × 100 yielding 903900
+ 9039 × 9000 that equals 81351000

= 82507992
