大数除法

public static String bigchars(char[] d , int b){int length = d.length;char c = d[0];int reminder = 0;StringBuilder sb = new StringBuilder();for(int i = 0; i <= length - 1;i++){c = d[i];if(c != '.'){reminder =  reminder * 10 + (c - '0');sb.append(reminder/b);reminder = reminder % b;}else{sb.append(".");}}return sb.toString();}