Let's divide 8135649 by 171
The aim is to understand the frequency of 171 in 8135649.

Advancing to step 1:
If we divide 8 by 171, we get 0 and a remainder of 8.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 8 leaves us with 8.
Take the next digit (1) from the dividend and append it to 8, then repeat: 81 / 171

Moving on to step 2:
The number 171 fits into 81 0 times, leaving a remainder of 81.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 81 to get 81.
Include the next digit (3) from the dividend after 81, then repeat: 813 / 171

On to step 3:
The number 171 fits into 813 4 times, leaving a remainder of 129.
Record the quotient 4 as the next digit in the result. 
Result so far: 4.0
If we subtract 684 from 813, we get 129.
Grab the next digit (5) from the dividend, add it to 129, then carry on: 1295 / 171

Step 4:
171 goes into 1295 7 times with a remainder of 98.
Use 7 as the next digit of our solution. 
Result so far: 47.0
Deduct 1197 from 1295 and we're left with 98.
Append the next digit (6) from the dividend to 98 and continue with: 986 / 171

Step 5:
If we divide 986 by 171, we get 5 and a remainder of 131.
Record the quotient 5 as the next digit in the result. 
Result so far: 475.0
The remainder is 131 after subtracting 855 from 986.
Grab the next digit (4) from the dividend, add it to 131, then carry on: 1314 / 171

On to step 6:
The number 171 fits into 1314 7 times, leaving a remainder of 117.
Use 7 as the next digit of our solution. 
Result so far: 4757.0
Subtract 1197 from 1314 to get 117.
Append the next digit (9) from the dividend to 117 and continue with: 1179 / 171

Step 7:
171 goes into 1179 6 times with a remainder of 153.
Write down 6 as next digit of the result. 
Result so far: 47576.0
Subtracting 1026 from 1179 leaves us with 153.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1530, and continue the process.

Going ahead to step 8:
171 can be fit into 1530 8 times, resulting in a remainder of 162.
Use 8 as the next digit of our solution. 
Result so far: 47576.8
If we subtract 1368 from 1530, we get 162.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1620, and continue the process.

Moving on to step 9:
When dividing 1620 by 171, we get 9 with a remainder of 81.
The next digit of our result is 9. 
Result so far: 47576.89
Deduct 1539 from 1620 and we're left with 81.
Since there are no more digits in the dividend, we add a zero to the remainder making it 810, and continue the process.

Step 10:
When dividing 810 by 171, we get 4 with a remainder of 126.
Write down 4 as next digit of the result. 
Result so far: 47576.894
If we take 684 away from 810, we end up with 126.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1260, and continue the process.

Let's proceed to step 11:
171 can be fit into 1260 7 times, resulting in a remainder of 63.
The next digit of our result is 7. 
Result so far: 47576.8947
If we take 1197 away from 1260, we end up with 63.
Since there are no more digits in the dividend, we add a zero to the remainder making it 630, and continue the process.

On to step 12:
The number 171 fits into 630 3 times, leaving a remainder of 117.
Write down 3 as next digit of the result. 
Result so far: 47576.89473
If we subtract 513 from 630, we get 117.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1170, and continue the process.

Advancing to step 13:
171 can be fit into 1170 6 times, resulting in a remainder of 144.
Use 6 as the next digit of our solution. 
Result so far: 47576.894736
If we subtract 1026 from 1170, we get 144.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1440, and continue the process.

On to step 14:
171 can be fit into 1440 8 times, resulting in a remainder of 72.
The number 8 becomes the next digit in our result. 
Result so far: 47576.8947368
Subtracting 1368 from 1440 leaves us with 72.
Since there are no more digits in the dividend, we add a zero to the remainder making it 720, and continue the process.

Advancing to step 15:
171 goes into 720 4 times with a remainder of 36.
Put 4 as the next digit of the answer. 
Result so far: 47576.89473684
If we subtract 684 from 720, we get 36.
Since there are no more digits in the dividend, we add a zero to the remainder making it 360, and continue the process.

The final result is 47576.89473684 with a remainder of 3.6e-08.