HELP! Changing the base of a floating point number..

[yigster]

Hello,
I am studying C in school and we have this book ANSI C written by Gary J. Bronson, which isnt very helpful..

So the question;
I am able to write a code which can change an integer in to whatever base I like but cant really do that with a decimal..(eg: 2.54) can someone please help me ??

#include <stdio.h>
#include <stdlib.h>
#include <math.h>
 
         int main(void)
         
         {
             int number,base,reminder,numbits=0,highestfactor,bit;
             
             printf("please enter the decimal number:");
             scanf("%d",&number);
             printf("please enter the base the number will be converted to:");
             scanf("%d",&base);
             
               reminder=number;
        while(reminder!=0)
        {
                          reminder=reminder/base;
                        
                          numbits++;
                          }
                          
                          highestfactor=numbits-1;
                          int i=0;
                          
                          while(i<numbits)
                          {
                                          
                                          int pwr=pow(base,highestfactor);
                                          bit=number/pow(base,highestfactor);
                                             number=number%pwr;
                                             printf("%d",bit);
                                             highestfactor--;
                                             i++; 
                                            
                                             }
                                             
                                             system("pause");
                                             getchar();
                                             getchar();
                                             return 0;
                                             }