We're dividing 15974736 by 171 
The aim is to understand the frequency of 171 in 15974736.

Step 1:
1 divided by 171 is 0 with a remainder of 1.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtracting 0 from 1 leaves us with 1.
Append the next digit (5) from the dividend to 1 and continue with: 15 / 171

Going ahead to step 2:
The number 171 fits into 15 0 times, leaving a remainder of 15.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 15, we end up with 15.
Grab the next digit (9) from the dividend, add it to 15, then carry on: 159 / 171

Step 3:
The number 171 fits into 159 0 times, leaving a remainder of 159.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 159 after subtracting 0 from 159.
Fetch the next digit (7) from the dividend, attach it to 159 and continue: 1597 / 171

Moving on to step 4:
When dividing 1597 by 171, we get 9 with a remainder of 58.
Record the quotient 9 as the next digit in the result. 
Result so far: 9.0
If we take 1539 away from 1597, we end up with 58.
Fetch the next digit (4) from the dividend, attach it to 58 and continue: 584 / 171

Let's proceed to step 5:
171 goes into 584 3 times with a remainder of 71.
The number 3 becomes the next digit in our result. 
Result so far: 93.0
The remainder is 71 after subtracting 513 from 584.
Grab the next digit (7) from the dividend, add it to 71, then carry on: 717 / 171

On to step 6:
717 divided by 171 is 4 with a remainder of 33.
Use 4 as the next digit of our solution. 
Result so far: 934.0
If we take 684 away from 717, we end up with 33.
Append the next digit (3) from the dividend to 33 and continue with: 333 / 171

On to step 7:
171 goes into 333 1 times with a remainder of 162.
Use 1 as the next digit of our solution. 
Result so far: 9341.0
The remainder is 162 after subtracting 171 from 333.
Include the next digit (6) from the dividend after 162, then repeat: 1626 / 171

Step 8:
If we divide 1626 by 171, we get 9 and a remainder of 87.
Record the quotient 9 as the next digit in the result. 
Result so far: 93419.0
Subtracting 1539 from 1626 leaves us with 87.
Since there are no more digits in the dividend, we add a zero to the remainder making it 870, and continue the process.

Going ahead to step 9:
The number 171 fits into 870 5 times, leaving a remainder of 15.
The next digit of our result is 5. 
Result so far: 93419.5
If we take 855 away from 870, we end up with 15.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

Going ahead to step 10:
171 goes into 150 0 times with a remainder of 150.
Use 0 as the next digit of our solution. 
Result so far: 93419.5
Subtract 0 from 150 to get 150.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1500, and continue the process.

On to step 11:
171 can be fit into 1500 8 times, resulting in a remainder of 132.
Put 8 as the next digit of the answer. 
Result so far: 93419.508
Subtracting 1368 from 1500 leaves us with 132.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1320, and continue the process.

Step 12:
When dividing 1320 by 171, we get 7 with a remainder of 123.
Use 7 as the next digit of our solution. 
Result so far: 93419.5087
Deduct 1197 from 1320 and we're left with 123.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1230, and continue the process.

Going ahead to step 13:
If we divide 1230 by 171, we get 7 and a remainder of 33.
The number 7 becomes the next digit in our result. 
Result so far: 93419.50877
The remainder is 33 after subtracting 1197 from 1230.
Since there are no more digits in the dividend, we add a zero to the remainder making it 330, and continue the process.

In conclusion, the division gives 93419.50877 with a balance of 3.3e-05.