Let's divide 12619608 by 821
We want to divide 12619608 by 821.

Going ahead to step 1:
821 goes into 1 0 times with a remainder of 1.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 1 and we're left with 1.
Take the next digit (2) from the dividend and append it to 1, then repeat: 12 / 821

Step 2:
The number 821 fits into 12 0 times, leaving a remainder of 12.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 12 and we're left with 12.
Append the next digit (6) from the dividend to 12 and continue with: 126 / 821

On to step 3:
126 divided by 821 is 0 with a remainder of 126.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 126 and we're left with 126.
Grab the next digit (1) from the dividend, add it to 126, then carry on: 1261 / 821

On to step 4:
821 can be fit into 1261 1 times, resulting in a remainder of 440.
Write down 1 as next digit of the result. 
Result so far: 1.0
If we take 821 away from 1261, we end up with 440.
Fetch the next digit (9) from the dividend, attach it to 440 and continue: 4409 / 821

Step 5:
If we divide 4409 by 821, we get 5 and a remainder of 304.
Put 5 as the next digit of the answer. 
Result so far: 15.0
If we take 4105 away from 4409, we end up with 304.
Append the next digit (6) from the dividend to 304 and continue with: 3046 / 821

Let's proceed to step 6:
The number 821 fits into 3046 3 times, leaving a remainder of 583.
The next digit of our result is 3. 
Result so far: 153.0
Deduct 2463 from 3046 and we're left with 583.
Bring next digit (0) of the dividend behind the 583 and repeat the process: 5830 / 821

On to step 7:
If we divide 5830 by 821, we get 7 and a remainder of 83.
Put 7 as the next digit of the answer. 
Result so far: 1537.0
The remainder is 83 after subtracting 5747 from 5830.
Include the next digit (8) from the dividend after 83, then repeat: 838 / 821

Step 8:
821 goes into 838 1 times with a remainder of 17.
Write down 1 as next digit of the result. 
Result so far: 15371.0
The remainder is 17 after subtracting 821 from 838.
Since there are no more digits in the dividend, we add a zero to the remainder making it 170, and continue the process.

Moving on to step 9:
821 can be fit into 170 0 times, resulting in a remainder of 170.
Record the quotient 0 as the next digit in the result. 
Result so far: 15371.0
If we take 0 away from 170, we end up with 170.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1700, and continue the process.

Step 10:
When dividing 1700 by 821, we get 2 with a remainder of 58.
Use 2 as the next digit of our solution. 
Result so far: 15371.02
Subtracting 1642 from 1700 leaves us with 58.
Since there are no more digits in the dividend, we add a zero to the remainder making it 580, and continue the process.

On to step 11:
580 divided by 821 is 0 with a remainder of 580.
The number 0 becomes the next digit in our result. 
Result so far: 15371.02
Deduct 0 from 580 and we're left with 580.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5800, and continue the process.

Moving on to step 12:
821 goes into 5800 7 times with a remainder of 53.
The number 7 becomes the next digit in our result. 
Result so far: 15371.0207
Subtracting 5747 from 5800 leaves us with 53.
Since there are no more digits in the dividend, we add a zero to the remainder making it 530, and continue the process.

Let's proceed to step 13:
When dividing 530 by 821, we get 0 with a remainder of 530.
The number 0 becomes the next digit in our result. 
Result so far: 15371.0207
If we take 0 away from 530, we end up with 530.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5300, and continue the process.

Going ahead to step 14:
5300 divided by 821 is 6 with a remainder of 374.
Write down 6 as next digit of the result. 
Result so far: 15371.020706
Subtract 4926 from 5300 to get 374.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3740, and continue the process.

Step 15:
When dividing 3740 by 821, we get 4 with a remainder of 456.
Put 4 as the next digit of the answer. 
Result so far: 15371.0207064
Deduct 3284 from 3740 and we're left with 456.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4560, and continue the process.

Step 16:
If we divide 4560 by 821, we get 5 and a remainder of 455.
Use 5 as the next digit of our solution. 
Result so far: 15371.02070645
If we take 4105 away from 4560, we end up with 455.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4550, and continue the process.

The final outcome is 15371.02070645, with a leftover of 4.55e-07.