We're dividing 21708179 by 171 
Let's see how many times 171 fits into 21708179.

Advancing to step 1:
The number 171 fits into 2 0 times, leaving a remainder of 2.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 2, we end up with 2.
Take the next digit (1) from the dividend and append it to 2, then repeat: 21 / 171

Advancing to step 2:
When dividing 21 by 171, we get 0 with a remainder of 21.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 21 and we're left with 21.
Append the next digit (7) from the dividend to 21 and continue with: 217 / 171

Moving on to step 3:
217 divided by 171 is 1 with a remainder of 46.
Write down 1 as next digit of the result. 
Result so far: 1.0
If we subtract 171 from 217, we get 46.
Include the next digit (0) from the dividend after 46, then repeat: 460 / 171

Moving on to step 4:
460 divided by 171 is 2 with a remainder of 118.
Record the quotient 2 as the next digit in the result. 
Result so far: 12.0
Deduct 342 from 460 and we're left with 118.
Take the next digit (8) from the dividend and append it to 118, then repeat: 1188 / 171

Let's proceed to step 5:
When dividing 1188 by 171, we get 6 with a remainder of 162.
Write down 6 as next digit of the result. 
Result so far: 126.0
Subtract 1026 from 1188 to get 162.
Take the next digit (1) from the dividend and append it to 162, then repeat: 1621 / 171

Going ahead to step 6:
The number 171 fits into 1621 9 times, leaving a remainder of 82.
The next digit of our result is 9. 
Result so far: 1269.0
Subtracting 1539 from 1621 leaves us with 82.
Bring next digit (7) of the dividend behind the 82 and repeat the process: 827 / 171

Let's proceed to step 7:
The number 171 fits into 827 4 times, leaving a remainder of 143.
The number 4 becomes the next digit in our result. 
Result so far: 12694.0
If we take 684 away from 827, we end up with 143.
Bring next digit (9) of the dividend behind the 143 and repeat the process: 1439 / 171

On to step 8:
1439 divided by 171 is 8 with a remainder of 71.
The next digit of our result is 8. 
Result so far: 126948.0
Subtracting 1368 from 1439 leaves us with 71.
Since there are no more digits in the dividend, we add a zero to the remainder making it 710, and continue the process.

Going ahead to step 9:
When dividing 710 by 171, we get 4 with a remainder of 26.
Put 4 as the next digit of the answer. 
Result so far: 126948.4
Subtracting 684 from 710 leaves us with 26.
Since there are no more digits in the dividend, we add a zero to the remainder making it 260, and continue the process.

Let's proceed to step 10:
171 can be fit into 260 1 times, resulting in a remainder of 89.
The next digit of our result is 1. 
Result so far: 126948.41
Subtract 171 from 260 to get 89.
Since there are no more digits in the dividend, we add a zero to the remainder making it 890, and continue the process.

Advancing to step 11:
The number 171 fits into 890 5 times, leaving a remainder of 35.
The number 5 becomes the next digit in our result. 
Result so far: 126948.415
If we subtract 855 from 890, we get 35.
Since there are no more digits in the dividend, we add a zero to the remainder making it 350, and continue the process.

Going ahead to step 12:
171 goes into 350 2 times with a remainder of 8.
Write down 2 as next digit of the result. 
Result so far: 126948.4152
If we subtract 342 from 350, we get 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

On to step 13:
171 goes into 80 0 times with a remainder of 80.
Write down 0 as next digit of the result. 
Result so far: 126948.4152
Subtract 0 from 80 to get 80.
Since there are no more digits in the dividend, we add a zero to the remainder making it 800, and continue the process.

Advancing to step 14:
171 can be fit into 800 4 times, resulting in a remainder of 116.
The number 4 becomes the next digit in our result. 
Result so far: 126948.415204
Subtract 684 from 800 to get 116.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1160, and continue the process.

On to step 15:
The number 171 fits into 1160 6 times, leaving a remainder of 134.
The next digit of our result is 6. 
Result so far: 126948.4152046
The remainder is 134 after subtracting 1026 from 1160.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1340, and continue the process.

On to step 16:
When dividing 1340 by 171, we get 7 with a remainder of 143.
Record the quotient 7 as the next digit in the result. 
Result so far: 126948.41520467
If we subtract 1197 from 1340, we get 143.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1430, and continue the process.

Our division results in 126948.41520467 with a remaining 1.43e-07.