54.2 / 2 = 27.1 (exact split) returns true
61.05 / 2 = 30.525 (not exact split) returns false

(54.20 * 100) % 2 = 0
(61.05 * 100) % 2 = 1

if (((number*100) % 1) == 0) {
    // exact
} else {
    // not exact
}

String decimals = Float.toString(f);
String[] tokens = decimals.split("[.]");
return tokens[1].length() == 2;

public static boolean isExactSplit (BigDecimal number, int nbParts) {
    try {
        number.divide(new BigDecimal(nbParts), 2, RoundingMode.UNNECESSARY);
        return true;
    } catch (ArithmeticException roundingError) {
        return false;
    }
}

System.out.println(isExactSplit(new BigDecimal("54.2"), 2)); // prints true
System.out.println(isExactSplit(new BigDecimal("61.05"), 2)); // prints false