/// Checked integer division without remainder. Computes `self / rhs`,
/// returning `None` if `rhs == 0` or if division remainder is not zero.
pub const fn checked_exact_div(self, rhs: Self) -> Option<Self> { ... }

/// Integer division without remainder. Computes `self / rhs`,
/// panics if `rhs == 0` or if division remainder is not zero.
pub const fn exact_div(self, rhs: Self) -> Self { ... }

/// Integer division without remainder.
/// Unchecked version of `exact_div`.
pub unsafe const fn unchecked_exact_div(self, rhs: Self) -> Self { ... }