Integer overflow

/Users/HalimHidayat/Documents/Arduino/SP02Test/SP02Test.ino: In function 'void loop()':
/Users/HalimHidayat/Documents/Arduino/SP02Test/SP02Test.ino:27:30: warning: integer overflow in expression [-Woverflow]
inptI = -(inptV5/(250000001023))1000000;
^
/Users/HalimHidayat/Documents/Arduino/SP02Test/SP02Test.ino:34:30: warning: integer overflow in expression [-Woverflow]
inptI = -(inptV
5/(25000000*1023))*1000000;

Hi, I am a little noob on programming but this is my code and I am currently having issues with integer overflow. May I ask a lil help from the experts on what went wrong?

SP02Test.ino (916 Bytes)

(inptV*5/(25000000*1023))*1000000;

An "int" on an eight bit Arduino is a 16 bit signed value.
Neither 25000000 nor 1000000 fits in a 16 bit value, signed or unsigned.