public static double mul(float v1, float v2) {
		return mul(Float.toString(v1), Float.toString(v2)).doubleValue();
	}
@Test
	public void issueI7R2B6Test2() {
		final BigDecimal mul = NumberUtil.mul((Number) 15858155520D, 100.0);
		assertEquals("1585815552000", mul.toString());
	}