it("returns the floating point remainder", async (cb) => {
            expect(await numberRemainder(5, 1.4)).toBe(5 % 1.4);
            expect(await numberRemainder(5, -1.4)).toBe(5 % -1.4);
            expect(await numberRemainder(-5, 1.4)).toBe(-5 % 1.4);
            expect(await numberRemainder(-5, -1.4)).toBe(-5 % -1.4);