We look at the division of 20706586 by 821 
We're looking to find how many times 821 goes into 20706586.

Moving on to step 1:
If we divide 2 by 821, we get 0 and a remainder of 2.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 2 after subtracting 0 from 2.
Bring next digit (0) of the dividend behind the 2 and repeat the process: 20 / 821

Going ahead to step 2:
20 divided by 821 is 0 with a remainder of 20.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 20 leaves us with 20.
Grab the next digit (7) from the dividend, add it to 20, then carry on: 207 / 821

Let's proceed to step 3:
821 goes into 207 0 times with a remainder of 207.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we subtract 0 from 207, we get 207.
Include the next digit (0) from the dividend after 207, then repeat: 2070 / 821

Step 4:
821 goes into 2070 2 times with a remainder of 428.
Write down 2 as next digit of the result. 
Result so far: 2.0
Subtracting 1642 from 2070 leaves us with 428.
Take the next digit (6) from the dividend and append it to 428, then repeat: 4286 / 821

Step 5:
The number 821 fits into 4286 5 times, leaving a remainder of 181.
Put 5 as the next digit of the answer. 
Result so far: 25.0
If we take 4105 away from 4286, we end up with 181.
Include the next digit (5) from the dividend after 181, then repeat: 1815 / 821

Moving on to step 6:
The number 821 fits into 1815 2 times, leaving a remainder of 173.
The number 2 becomes the next digit in our result. 
Result so far: 252.0
The remainder is 173 after subtracting 1642 from 1815.
Include the next digit (8) from the dividend after 173, then repeat: 1738 / 821

Moving on to step 7:
1738 divided by 821 is 2 with a remainder of 96.
Record the quotient 2 as the next digit in the result. 
Result so far: 2522.0
If we take 1642 away from 1738, we end up with 96.
Grab the next digit (6) from the dividend, add it to 96, then carry on: 966 / 821

On to step 8:
The number 821 fits into 966 1 times, leaving a remainder of 145.
Record the quotient 1 as the next digit in the result. 
Result so far: 25221.0
The remainder is 145 after subtracting 821 from 966.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1450, and continue the process.

Going ahead to step 9:
The number 821 fits into 1450 1 times, leaving a remainder of 629.
Put 1 as the next digit of the answer. 
Result so far: 25221.1
If we subtract 821 from 1450, we get 629.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6290, and continue the process.

On to step 10:
The number 821 fits into 6290 7 times, leaving a remainder of 543.
Write down 7 as next digit of the result. 
Result so far: 25221.17
Deduct 5747 from 6290 and we're left with 543.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5430, and continue the process.

On to step 11:
821 goes into 5430 6 times with a remainder of 504.
The number 6 becomes the next digit in our result. 
Result so far: 25221.176
If we take 4926 away from 5430, we end up with 504.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5040, and continue the process.

Advancing to step 12:
When dividing 5040 by 821, we get 6 with a remainder of 114.
The number 6 becomes the next digit in our result. 
Result so far: 25221.1766
Subtract 4926 from 5040 to get 114.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1140, and continue the process.

Our division results in 25221.1766 with a remaining 0.00114.