/*
* If *this.len < b.len, then *this < b, and we can be sure that b doesn't go into
* *this at all. The quotient is 0 and *this is already the remainder (so leave it alone).
/*
* If *this.len < b.len, then *this < b, and we can be sure that b doesn't go into
* *this at all. The quotient is 0 and *this is already the remainder (so leave it alone).