12971496 ÷ 252 
We want to divide 12971496 by 252.

Step 1:
The number 252 fits into 1 0 times, leaving a remainder of 1.
The next digit of our result is 0. 
Result so far: 0.0
Subtract 0 from 1 to get 1.
Take the next digit (2) from the dividend and append it to 1, then repeat: 12 / 252

Moving on to step 2:
12 divided by 252 is 0 with a remainder of 12.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 12 after subtracting 0 from 12.
Fetch the next digit (9) from the dividend, attach it to 12 and continue: 129 / 252

Advancing to step 3:
If we divide 129 by 252, we get 0 and a remainder of 129.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 129, we get 129.
Bring next digit (7) of the dividend behind the 129 and repeat the process: 1297 / 252

Going ahead to step 4:
The number 252 fits into 1297 5 times, leaving a remainder of 37.
The number 5 becomes the next digit in our result. 
Result so far: 5.0
If we take 1260 away from 1297, we end up with 37.
Append the next digit (1) from the dividend to 37 and continue with: 371 / 252

Moving on to step 5:
252 goes into 371 1 times with a remainder of 119.
Use 1 as the next digit of our solution. 
Result so far: 51.0
Subtract 252 from 371 to get 119.
Append the next digit (4) from the dividend to 119 and continue with: 1194 / 252

Let's proceed to step 6:
The number 252 fits into 1194 4 times, leaving a remainder of 186.
Put 4 as the next digit of the answer. 
Result so far: 514.0
If we take 1008 away from 1194, we end up with 186.
Append the next digit (9) from the dividend to 186 and continue with: 1869 / 252

On to step 7:
252 goes into 1869 7 times with a remainder of 105.
Put 7 as the next digit of the answer. 
Result so far: 5147.0
Deduct 1764 from 1869 and we're left with 105.
Bring next digit (6) of the dividend behind the 105 and repeat the process: 1056 / 252

Let's proceed to step 8:
252 goes into 1056 4 times with a remainder of 48.
The number 4 becomes the next digit in our result. 
Result so far: 51474.0
Deduct 1008 from 1056 and we're left with 48.
Since there are no more digits in the dividend, we add a zero to the remainder making it 480, and continue the process.

Moving on to step 9:
480 divided by 252 is 1 with a remainder of 228.
The number 1 becomes the next digit in our result. 
Result so far: 51474.1
If we subtract 252 from 480, we get 228.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2280, and continue the process.

Moving on to step 10:
252 can be fit into 2280 9 times, resulting in a remainder of 12.
The next digit of our result is 9. 
Result so far: 51474.19
If we take 2268 away from 2280, we end up with 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

Step 11:
The number 252 fits into 120 0 times, leaving a remainder of 120.
Use 0 as the next digit of our solution. 
Result so far: 51474.19
If we take 0 away from 120, we end up with 120.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1200, and continue the process.

Let's proceed to step 12:
252 goes into 1200 4 times with a remainder of 192.
Put 4 as the next digit of the answer. 
Result so far: 51474.1904
Subtracting 1008 from 1200 leaves us with 192.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1920, and continue the process.

On to step 13:
252 can be fit into 1920 7 times, resulting in a remainder of 156.
Put 7 as the next digit of the answer. 
Result so far: 51474.19047
If we subtract 1764 from 1920, we get 156.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1560, and continue the process.

Advancing to step 14:
1560 divided by 252 is 6 with a remainder of 48.
The next digit of our result is 6. 
Result so far: 51474.190476
Subtracting 1512 from 1560 leaves us with 48.
Since there are no more digits in the dividend, we add a zero to the remainder making it 480, and continue the process.

On to step 15:
252 can be fit into 480 1 times, resulting in a remainder of 228.
Write down 1 as next digit of the result. 
Result so far: 51474.1904761
If we take 252 away from 480, we end up with 228.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2280, and continue the process.

Going ahead to step 16:
The number 252 fits into 2280 9 times, leaving a remainder of 12.
Use 9 as the next digit of our solution. 
Result so far: 51474.19047619
Deduct 2268 from 2280 and we're left with 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

After the division, we end up with 51474.19047619 and a remainder of 1.2e-08.