whatis (123456789+14236789)square minus (123456789-14236789)square /12345678*14236789

I got bored so i solved it...

Step1...

$$\frac{(123456789+14236789)^2-(123456789-14236789)^2}{(123456789)(14236789)}$$

Step2...

$$\frac{(137693578)^2-(109220000)^2}{1757628255610521}$$

Step 3...

$$\frac{18959521422422084-11929008400000000}{1757628255610521}$$

Step 4...

$$\frac{7030513022422084}{1757628255610521}$$

Step 5...

$$3.999999999988621$$