Because you made a mistake!!!. If 93,548 is the right answer, then you must multiply 364 X 257!.
If you got 28,028, then had to multiply 364 X 77=28,028. Check and see where the mistake is.
And what is this number: 293,57? If you want to separate the thousands by "," you must start from the right like this: 29,357. OK?.