from INT64 arithmetic in MATLAB by Petter
Enables int64 Addition, subtraction, multiplication, division and modulus.

mrdivide(a,b)
function c = mrdivide(a,b)
	checkinputs(a,b);
	if numel(a)>1 && numel(b)>1
		error('Only elementwise division supported.');
	end
	c = uint64rdivide(uint64(a),uint64(b));
end

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