Let's divide 12131891 by 568
We want to divide 12131891 by 568.

On to step 1:
If we divide 1 by 568, we get 0 and a remainder of 1.
Put 0 as the next digit of the answer. 
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 / 568

Moving on to step 2:
12 divided by 568 is 0 with a remainder of 12.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we subtract 0 from 12, we get 12.
Fetch the next digit (1) from the dividend, attach it to 12 and continue: 121 / 568

Let's proceed to step 3:
The number 568 fits into 121 0 times, leaving a remainder of 121.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 121 and we're left with 121.
Append the next digit (3) from the dividend to 121 and continue with: 1213 / 568

Advancing to step 4:
568 goes into 1213 2 times with a remainder of 77.
Use 2 as the next digit of our solution. 
Result so far: 2.0
If we subtract 1136 from 1213, we get 77.
Grab the next digit (1) from the dividend, add it to 77, then carry on: 771 / 568

On to step 5:
568 goes into 771 1 times with a remainder of 203.
Put 1 as the next digit of the answer. 
Result so far: 21.0
Subtracting 568 from 771 leaves us with 203.
Take the next digit (8) from the dividend and append it to 203, then repeat: 2038 / 568

Let's proceed to step 6:
568 can be fit into 2038 3 times, resulting in a remainder of 334.
The next digit of our result is 3. 
Result so far: 213.0
If we subtract 1704 from 2038, we get 334.
Bring next digit (9) of the dividend behind the 334 and repeat the process: 3349 / 568

Advancing to step 7:
3349 divided by 568 is 5 with a remainder of 509.
Put 5 as the next digit of the answer. 
Result so far: 2135.0
The remainder is 509 after subtracting 2840 from 3349.
Grab the next digit (1) from the dividend, add it to 509, then carry on: 5091 / 568

Moving on to step 8:
If we divide 5091 by 568, we get 8 and a remainder of 547.
The number 8 becomes the next digit in our result. 
Result so far: 21358.0
The remainder is 547 after subtracting 4544 from 5091.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5470, and continue the process.

Moving on to step 9:
The number 568 fits into 5470 9 times, leaving a remainder of 358.
Use 9 as the next digit of our solution. 
Result so far: 21358.9
If we take 5112 away from 5470, we end up with 358.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3580, and continue the process.

Let's proceed to step 10:
568 goes into 3580 6 times with a remainder of 172.
Use 6 as the next digit of our solution. 
Result so far: 21358.96
Subtract 3408 from 3580 to get 172.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1720, and continue the process.

Advancing to step 11:
If we divide 1720 by 568, we get 3 and a remainder of 16.
The number 3 becomes the next digit in our result. 
Result so far: 21358.963
Deduct 1704 from 1720 and we're left with 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Moving on to step 12:
When dividing 160 by 568, we get 0 with a remainder of 160.
The next digit of our result is 0. 
Result so far: 21358.963
Deduct 0 from 160 and we're left with 160.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1600, and continue the process.

Advancing to step 13:
The number 568 fits into 1600 2 times, leaving a remainder of 464.
The number 2 becomes the next digit in our result. 
Result so far: 21358.96302
Subtract 1136 from 1600 to get 464.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4640, and continue the process.

Step 14:
The number 568 fits into 4640 8 times, leaving a remainder of 96.
The next digit of our result is 8. 
Result so far: 21358.963028
If we subtract 4544 from 4640, we get 96.
Since there are no more digits in the dividend, we add a zero to the remainder making it 960, and continue the process.

Advancing to step 15:
568 goes into 960 1 times with a remainder of 392.
Record the quotient 1 as the next digit in the result. 
Result so far: 21358.9630281
If we take 568 away from 960, we end up with 392.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3920, and continue the process.

On to step 16:
If we divide 3920 by 568, we get 6 and a remainder of 512.
The number 6 becomes the next digit in our result. 
Result so far: 21358.96302816
Subtract 3408 from 3920 to get 512.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5120, and continue the process.

After the division, we end up with 21358.96302816 and a remainder of 5.12e-07.