Alright, let's work through 9039 times 788 step by step
9039 × 788 = 788 × (9039)
+ 788 × 9 that equals 7092
+ 788 × 30 what gives us 23640
+ 788 × 000 what gives us 0
+ 788 × 9000 giving us 7092000

= 7122732
