40972579 ÷ 315 
We want to divide 40972579 by 315.

Advancing to step 1:
4 divided by 315 is 0 with a remainder of 4.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 4, we end up with 4.
Grab the next digit (0) from the dividend, add it to 4, then carry on: 40 / 315

On to step 2:
If we divide 40 by 315, we get 0 and a remainder of 40.
The next digit of our result is 0. 
Result so far: 0.0
Subtracting 0 from 40 leaves us with 40.
Bring next digit (9) of the dividend behind the 40 and repeat the process: 409 / 315

On to step 3:
315 goes into 409 1 times with a remainder of 94.
Put 1 as the next digit of the answer. 
Result so far: 1.0
Deduct 315 from 409 and we're left with 94.
Include the next digit (7) from the dividend after 94, then repeat: 947 / 315

Moving on to step 4:
315 goes into 947 3 times with a remainder of 2.
The number 3 becomes the next digit in our result. 
Result so far: 13.0
The remainder is 2 after subtracting 945 from 947.
Fetch the next digit (2) from the dividend, attach it to 2 and continue: 22 / 315

Step 5:
The number 315 fits into 22 0 times, leaving a remainder of 22.
Record the quotient 0 as the next digit in the result. 
Result so far: 130.0
Subtract 0 from 22 to get 22.
Grab the next digit (5) from the dividend, add it to 22, then carry on: 225 / 315

On to step 6:
315 goes into 225 0 times with a remainder of 225.
Put 0 as the next digit of the answer. 
Result so far: 1300.0
Subtract 0 from 225 to get 225.
Grab the next digit (7) from the dividend, add it to 225, then carry on: 2257 / 315

On to step 7:
If we divide 2257 by 315, we get 7 and a remainder of 52.
Put 7 as the next digit of the answer. 
Result so far: 13007.0
Subtracting 2205 from 2257 leaves us with 52.
Include the next digit (9) from the dividend after 52, then repeat: 529 / 315

Moving on to step 8:
When dividing 529 by 315, we get 1 with a remainder of 214.
Put 1 as the next digit of the answer. 
Result so far: 130071.0
Subtracting 315 from 529 leaves us with 214.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2140, and continue the process.

On to step 9:
2140 divided by 315 is 6 with a remainder of 250.
Write down 6 as next digit of the result. 
Result so far: 130071.6
If we subtract 1890 from 2140, we get 250.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2500, and continue the process.

Going ahead to step 10:
315 goes into 2500 7 times with a remainder of 295.
The next digit of our result is 7. 
Result so far: 130071.67
The remainder is 295 after subtracting 2205 from 2500.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2950, and continue the process.

On to step 11:
315 goes into 2950 9 times with a remainder of 115.
Record the quotient 9 as the next digit in the result. 
Result so far: 130071.679
Deduct 2835 from 2950 and we're left with 115.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1150, and continue the process.

Moving on to step 12:
315 can be fit into 1150 3 times, resulting in a remainder of 205.
The next digit of our result is 3. 
Result so far: 130071.6793
Subtract 945 from 1150 to get 205.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2050, and continue the process.

Moving on to step 13:
If we divide 2050 by 315, we get 6 and a remainder of 160.
Write down 6 as next digit of the result. 
Result so far: 130071.67936
The remainder is 160 after subtracting 1890 from 2050.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1600, and continue the process.

Step 14:
1600 divided by 315 is 5 with a remainder of 25.
The number 5 becomes the next digit in our result. 
Result so far: 130071.679365
If we take 1575 away from 1600, we end up with 25.
Since there are no more digits in the dividend, we add a zero to the remainder making it 250, and continue the process.

Step 15:
315 goes into 250 0 times with a remainder of 250.
Record the quotient 0 as the next digit in the result. 
Result so far: 130071.679365
Subtract 0 from 250 to get 250.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2500, and continue the process.

Going ahead to step 16:
2500 divided by 315 is 7 with a remainder of 295.
Write down 7 as next digit of the result. 
Result so far: 130071.67936507
If we subtract 2205 from 2500, we get 295.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2950, and continue the process.

After the division, we end up with 130071.67936507 and a remainder of 2.95e-07.