53102021 divided by 171 
The aim is to understand the frequency of 171 in 53102021.

Advancing to step 1:
If we divide 5 by 171, we get 0 and a remainder of 5.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 5, we get 5.
Grab the next digit (3) from the dividend, add it to 5, then carry on: 53 / 171

Going ahead to step 2:
When dividing 53 by 171, we get 0 with a remainder of 53.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 53 to get 53.
Grab the next digit (1) from the dividend, add it to 53, then carry on: 531 / 171

Let's proceed to step 3:
531 divided by 171 is 3 with a remainder of 18.
Record the quotient 3 as the next digit in the result. 
Result so far: 3.0
Subtract 513 from 531 to get 18.
Include the next digit (0) from the dividend after 18, then repeat: 180 / 171

Moving on to step 4:
180 divided by 171 is 1 with a remainder of 9.
The next digit of our result is 1. 
Result so far: 31.0
Deduct 171 from 180 and we're left with 9.
Take the next digit (2) from the dividend and append it to 9, then repeat: 92 / 171

Going ahead to step 5:
92 divided by 171 is 0 with a remainder of 92.
The number 0 becomes the next digit in our result. 
Result so far: 310.0
Subtract 0 from 92 to get 92.
Bring next digit (0) of the dividend behind the 92 and repeat the process: 920 / 171

Advancing to step 6:
171 goes into 920 5 times with a remainder of 65.
Write down 5 as next digit of the result. 
Result so far: 3105.0
Subtract 855 from 920 to get 65.
Append the next digit (2) from the dividend to 65 and continue with: 652 / 171

Moving on to step 7:
The number 171 fits into 652 3 times, leaving a remainder of 139.
The next digit of our result is 3. 
Result so far: 31053.0
If we subtract 513 from 652, we get 139.
Take the next digit (1) from the dividend and append it to 139, then repeat: 1391 / 171

Let's proceed to step 8:
When dividing 1391 by 171, we get 8 with a remainder of 23.
Write down 8 as next digit of the result. 
Result so far: 310538.0
Subtract 1368 from 1391 to get 23.
Since there are no more digits in the dividend, we add a zero to the remainder making it 230, and continue the process.

Moving on to step 9:
230 divided by 171 is 1 with a remainder of 59.
The number 1 becomes the next digit in our result. 
Result so far: 310538.1
The remainder is 59 after subtracting 171 from 230.
Since there are no more digits in the dividend, we add a zero to the remainder making it 590, and continue the process.

Advancing to step 10:
The number 171 fits into 590 3 times, leaving a remainder of 77.
Use 3 as the next digit of our solution. 
Result so far: 310538.13
If we subtract 513 from 590, we get 77.
Since there are no more digits in the dividend, we add a zero to the remainder making it 770, and continue the process.

On to step 11:
If we divide 770 by 171, we get 4 and a remainder of 86.
The next digit of our result is 4. 
Result so far: 310538.134
Deduct 684 from 770 and we're left with 86.
Since there are no more digits in the dividend, we add a zero to the remainder making it 860, and continue the process.

Advancing to step 12:
If we divide 860 by 171, we get 5 and a remainder of 5.
The number 5 becomes the next digit in our result. 
Result so far: 310538.1345
Subtracting 855 from 860 leaves us with 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

Let's proceed to step 13:
If we divide 50 by 171, we get 0 and a remainder of 50.
Write down 0 as next digit of the result. 
Result so far: 310538.1345
Deduct 0 from 50 and we're left with 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

Let's proceed to step 14:
The number 171 fits into 500 2 times, leaving a remainder of 158.
Write down 2 as next digit of the result. 
Result so far: 310538.134502
Subtract 342 from 500 to get 158.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1580, and continue the process.

Moving on to step 15:
If we divide 1580 by 171, we get 9 and a remainder of 41.
Write down 9 as next digit of the result. 
Result so far: 310538.1345029
If we subtract 1539 from 1580, we get 41.
Since there are no more digits in the dividend, we add a zero to the remainder making it 410, and continue the process.

Moving on to step 16:
171 goes into 410 2 times with a remainder of 68.
Put 2 as the next digit of the answer. 
Result so far: 310538.13450292
Subtracting 342 from 410 leaves us with 68.
Since there are no more digits in the dividend, we add a zero to the remainder making it 680, and continue the process.

After the division, we end up with 310538.13450292 and a remainder of 6.8e-08.