public function testDivide()
{
$bn = new BigNumber('9223372036854775808');
$this->assertSame($bn, $bn->divide(2));
$this->assertSame('4611686018427387904', $bn->getValue());
$bn->setScale(5);
$this->assertSame('1537228672809129301.33333', $bn->divide(3)->getValue());
}