We're dividing 20856077 by 171 
Our goal is to divide 20856077 by 171.

Moving on to step 1:
171 goes into 2 0 times with a remainder of 2.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 2 to get 2.
Fetch the next digit (0) from the dividend, attach it to 2 and continue: 20 / 171

Going ahead to step 2:
If we divide 20 by 171, we get 0 and a remainder of 20.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 20 and we're left with 20.
Append the next digit (8) from the dividend to 20 and continue with: 208 / 171

Advancing to step 3:
If we divide 208 by 171, we get 1 and a remainder of 37.
Write down 1 as next digit of the result. 
Result so far: 1.0
Subtract 171 from 208 to get 37.
Take the next digit (5) from the dividend and append it to 37, then repeat: 375 / 171

Let's proceed to step 4:
The number 171 fits into 375 2 times, leaving a remainder of 33.
Write down 2 as next digit of the result. 
Result so far: 12.0
If we take 342 away from 375, we end up with 33.
Fetch the next digit (6) from the dividend, attach it to 33 and continue: 336 / 171

Let's proceed to step 5:
171 can be fit into 336 1 times, resulting in a remainder of 165.
Record the quotient 1 as the next digit in the result. 
Result so far: 121.0
The remainder is 165 after subtracting 171 from 336.
Bring next digit (0) of the dividend behind the 165 and repeat the process: 1650 / 171

Step 6:
If we divide 1650 by 171, we get 9 and a remainder of 111.
The next digit of our result is 9. 
Result so far: 1219.0
Subtracting 1539 from 1650 leaves us with 111.
Append the next digit (7) from the dividend to 111 and continue with: 1117 / 171

Moving on to step 7:
1117 divided by 171 is 6 with a remainder of 91.
Use 6 as the next digit of our solution. 
Result so far: 12196.0
Subtracting 1026 from 1117 leaves us with 91.
Take the next digit (7) from the dividend and append it to 91, then repeat: 917 / 171

Advancing to step 8:
If we divide 917 by 171, we get 5 and a remainder of 62.
The number 5 becomes the next digit in our result. 
Result so far: 121965.0
If we take 855 away from 917, we end up with 62.
Since there are no more digits in the dividend, we add a zero to the remainder making it 620, and continue the process.

On to step 9:
620 divided by 171 is 3 with a remainder of 107.
The next digit of our result is 3. 
Result so far: 121965.3
The remainder is 107 after subtracting 513 from 620.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1070, and continue the process.

Going ahead to step 10:
1070 divided by 171 is 6 with a remainder of 44.
The number 6 becomes the next digit in our result. 
Result so far: 121965.36
If we subtract 1026 from 1070, we get 44.
Since there are no more digits in the dividend, we add a zero to the remainder making it 440, and continue the process.

Moving on to step 11:
If we divide 440 by 171, we get 2 and a remainder of 98.
Put 2 as the next digit of the answer. 
Result so far: 121965.362
If we take 342 away from 440, we end up with 98.
Since there are no more digits in the dividend, we add a zero to the remainder making it 980, and continue the process.

Step 12:
If we divide 980 by 171, we get 5 and a remainder of 125.
Record the quotient 5 as the next digit in the result. 
Result so far: 121965.3625
If we take 855 away from 980, we end up with 125.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1250, and continue the process.

Advancing to step 13:
171 goes into 1250 7 times with a remainder of 53.
The next digit of our result is 7. 
Result so far: 121965.36257
If we subtract 1197 from 1250, we get 53.
Since there are no more digits in the dividend, we add a zero to the remainder making it 530, and continue the process.

On to step 14:
171 can be fit into 530 3 times, resulting in a remainder of 17.
The next digit of our result is 3. 
Result so far: 121965.362573
If we take 513 away from 530, we end up with 17.
Since there are no more digits in the dividend, we add a zero to the remainder making it 170, and continue the process.

On to step 15:
171 goes into 170 0 times with a remainder of 170.
The number 0 becomes the next digit in our result. 
Result so far: 121965.362573
Subtract 0 from 170 to get 170.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1700, and continue the process.

On to step 16:
171 can be fit into 1700 9 times, resulting in a remainder of 161.
Record the quotient 9 as the next digit in the result. 
Result so far: 121965.36257309
The remainder is 161 after subtracting 1539 from 1700.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1610, and continue the process.

The final outcome is 121965.36257309, with a leftover of 1.61e-07.