Alright, let's work through 9728 times 7392 step by step
9728 × 7392 = 7392 × (9728)
+ 7392 × 8 what gives us 59136
+ 7392 × 20 giving us 147840
+ 7392 × 700 yielding 5174400
+ 7392 × 9000 yielding 66528000

= 71909376
