We're dividing 13587139 by 920 
The aim is to understand the frequency of 920 in 13587139.

Step 1:
920 goes into 1 0 times with a remainder of 1.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 1, we end up with 1.
Take the next digit (3) from the dividend and append it to 1, then repeat: 13 / 920

Moving on to step 2:
If we divide 13 by 920, we get 0 and a remainder of 13.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 13 and we're left with 13.
Append the next digit (5) from the dividend to 13 and continue with: 135 / 920

On to step 3:
When dividing 135 by 920, we get 0 with a remainder of 135.
The next digit of our result is 0. 
Result so far: 0.0
Subtracting 0 from 135 leaves us with 135.
Take the next digit (8) from the dividend and append it to 135, then repeat: 1358 / 920

On to step 4:
When dividing 1358 by 920, we get 1 with a remainder of 438.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
Subtracting 920 from 1358 leaves us with 438.
Include the next digit (7) from the dividend after 438, then repeat: 4387 / 920

Going ahead to step 5:
4387 divided by 920 is 4 with a remainder of 707.
Use 4 as the next digit of our solution. 
Result so far: 14.0
Deduct 3680 from 4387 and we're left with 707.
Take the next digit (1) from the dividend and append it to 707, then repeat: 7071 / 920

Going ahead to step 6:
7071 divided by 920 is 7 with a remainder of 631.
Write down 7 as next digit of the result. 
Result so far: 147.0
If we take 6440 away from 7071, we end up with 631.
Include the next digit (3) from the dividend after 631, then repeat: 6313 / 920

On to step 7:
When dividing 6313 by 920, we get 6 with a remainder of 793.
Put 6 as the next digit of the answer. 
Result so far: 1476.0
The remainder is 793 after subtracting 5520 from 6313.
Grab the next digit (9) from the dividend, add it to 793, then carry on: 7939 / 920

Let's proceed to step 8:
When dividing 7939 by 920, we get 8 with a remainder of 579.
Use 8 as the next digit of our solution. 
Result so far: 14768.0
Subtracting 7360 from 7939 leaves us with 579.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5790, and continue the process.

Moving on to step 9:
If we divide 5790 by 920, we get 6 and a remainder of 270.
Write down 6 as next digit of the result. 
Result so far: 14768.6
If we subtract 5520 from 5790, we get 270.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2700, and continue the process.

Step 10:
920 goes into 2700 2 times with a remainder of 860.
Put 2 as the next digit of the answer. 
Result so far: 14768.62
Subtract 1840 from 2700 to get 860.
Since there are no more digits in the dividend, we add a zero to the remainder making it 8600, and continue the process.

Going ahead to step 11:
920 goes into 8600 9 times with a remainder of 320.
Use 9 as the next digit of our solution. 
Result so far: 14768.629
The remainder is 320 after subtracting 8280 from 8600.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3200, and continue the process.

On to step 12:
920 can be fit into 3200 3 times, resulting in a remainder of 440.
Write down 3 as next digit of the result. 
Result so far: 14768.6293
If we subtract 2760 from 3200, we get 440.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4400, and continue the process.

Let's proceed to step 13:
920 goes into 4400 4 times with a remainder of 720.
The number 4 becomes the next digit in our result. 
Result so far: 14768.62934
Subtracting 3680 from 4400 leaves us with 720.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7200, and continue the process.

Let's proceed to step 14:
If we divide 7200 by 920, we get 7 and a remainder of 760.
Use 7 as the next digit of our solution. 
Result so far: 14768.629347
If we take 6440 away from 7200, we end up with 760.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7600, and continue the process.

Step 15:
When dividing 7600 by 920, we get 8 with a remainder of 240.
Write down 8 as next digit of the result. 
Result so far: 14768.6293478
Subtracting 7360 from 7600 leaves us with 240.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2400, and continue the process.

Let's proceed to step 16:
The number 920 fits into 2400 2 times, leaving a remainder of 560.
The number 2 becomes the next digit in our result. 
Result so far: 14768.62934782
The remainder is 560 after subtracting 1840 from 2400.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5600, and continue the process.

The final outcome is 14768.62934782, with a leftover of 5.6e-07.