We're dividing 637270 by 40 
Our goal is to divide 637270 by 40.

Going ahead to step 1:
The number 40 fits into 6 0 times, leaving a remainder of 6.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 6, we end up with 6.
Grab the next digit (3) from the dividend, add it to 6, then carry on: 63 / 40

Going ahead to step 2:
40 can be fit into 63 1 times, resulting in a remainder of 23.
Put 1 as the next digit of the answer. 
Result so far: 1.0
Subtracting 40 from 63 leaves us with 23.
Take the next digit (7) from the dividend and append it to 23, then repeat: 237 / 40

On to step 3:
237 divided by 40 is 5 with a remainder of 37.
The number 5 becomes the next digit in our result. 
Result so far: 15.0
Subtract 200 from 237 to get 37.
Take the next digit (2) from the dividend and append it to 37, then repeat: 372 / 40

Step 4:
40 can be fit into 372 9 times, resulting in a remainder of 12.
The next digit of our result is 9. 
Result so far: 159.0
Subtracting 360 from 372 leaves us with 12.
Take the next digit (7) from the dividend and append it to 12, then repeat: 127 / 40

Advancing to step 5:
The number 40 fits into 127 3 times, leaving a remainder of 7.
The next digit of our result is 3. 
Result so far: 1593.0
If we subtract 120 from 127, we get 7.
Grab the next digit (0) from the dividend, add it to 7, then carry on: 70 / 40

On to step 6:
40 can be fit into 70 1 times, resulting in a remainder of 30.
The number 1 becomes the next digit in our result. 
Result so far: 15931.0
Deduct 40 from 70 and we're left with 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

On to step 7:
40 can be fit into 300 7 times, resulting in a remainder of 20.
Use 7 as the next digit of our solution. 
Result so far: 15931.7
Subtracting 280 from 300 leaves us with 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

On to step 8:
40 can be fit into 200 5 times, resulting in a remainder of 0.
The number 5 becomes the next digit in our result. 
Result so far: 15931.75
If we take 200 away from 200, we end up with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Step 9:
0 divided by 40 is 0 with a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 15931.75
If we take 0 away from 0, we end up with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Let's proceed to step 10:
0 divided by 40 is 0 with a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 15931.75
Subtracting 0 from 0 leaves us with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

After the division, we end up with 15931.75 and a remainder of 0.0.