We're dividing 99015139 by 585 
The aim is to understand the frequency of 585 in 99015139.

Moving on to step 1:
9 divided by 585 is 0 with a remainder of 9.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 9, we get 9.
Grab the next digit (9) from the dividend, add it to 9, then carry on: 99 / 585

Let's proceed to step 2:
The number 585 fits into 99 0 times, leaving a remainder of 99.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 99 leaves us with 99.
Fetch the next digit (0) from the dividend, attach it to 99 and continue: 990 / 585

On to step 3:
585 can be fit into 990 1 times, resulting in a remainder of 405.
The next digit of our result is 1. 
Result so far: 1.0
If we take 585 away from 990, we end up with 405.
Bring next digit (1) of the dividend behind the 405 and repeat the process: 4051 / 585

Step 4:
585 can be fit into 4051 6 times, resulting in a remainder of 541.
Record the quotient 6 as the next digit in the result. 
Result so far: 16.0
The remainder is 541 after subtracting 3510 from 4051.
Take the next digit (5) from the dividend and append it to 541, then repeat: 5415 / 585

On to step 5:
When dividing 5415 by 585, we get 9 with a remainder of 150.
Record the quotient 9 as the next digit in the result. 
Result so far: 169.0
If we subtract 5265 from 5415, we get 150.
Bring next digit (1) of the dividend behind the 150 and repeat the process: 1501 / 585

Advancing to step 6:
585 goes into 1501 2 times with a remainder of 331.
Use 2 as the next digit of our solution. 
Result so far: 1692.0
The remainder is 331 after subtracting 1170 from 1501.
Grab the next digit (3) from the dividend, add it to 331, then carry on: 3313 / 585

Step 7:
3313 divided by 585 is 5 with a remainder of 388.
Put 5 as the next digit of the answer. 
Result so far: 16925.0
Subtracting 2925 from 3313 leaves us with 388.
Take the next digit (9) from the dividend and append it to 388, then repeat: 3889 / 585

Going ahead to step 8:
585 can be fit into 3889 6 times, resulting in a remainder of 379.
Write down 6 as next digit of the result. 
Result so far: 169256.0
If we subtract 3510 from 3889, we get 379.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3790, and continue the process.

Going ahead to step 9:
585 can be fit into 3790 6 times, resulting in a remainder of 280.
The next digit of our result is 6. 
Result so far: 169256.6
The remainder is 280 after subtracting 3510 from 3790.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2800, and continue the process.

Moving on to step 10:
When dividing 2800 by 585, we get 4 with a remainder of 460.
The next digit of our result is 4. 
Result so far: 169256.64
If we subtract 2340 from 2800, we get 460.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4600, and continue the process.

Going ahead to step 11:
585 goes into 4600 7 times with a remainder of 505.
The number 7 becomes the next digit in our result. 
Result so far: 169256.647
Subtract 4095 from 4600 to get 505.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5050, and continue the process.

Moving on to step 12:
When dividing 5050 by 585, we get 8 with a remainder of 370.
The number 8 becomes the next digit in our result. 
Result so far: 169256.6478
The remainder is 370 after subtracting 4680 from 5050.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3700, and continue the process.

Let's proceed to step 13:
585 can be fit into 3700 6 times, resulting in a remainder of 190.
Use 6 as the next digit of our solution. 
Result so far: 169256.64786
The remainder is 190 after subtracting 3510 from 3700.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1900, and continue the process.

Step 14:
If we divide 1900 by 585, we get 3 and a remainder of 145.
The next digit of our result is 3. 
Result so far: 169256.647863
Subtracting 1755 from 1900 leaves us with 145.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1450, and continue the process.

On to step 15:
If we divide 1450 by 585, we get 2 and a remainder of 280.
Put 2 as the next digit of the answer. 
Result so far: 169256.6478632
Deduct 1170 from 1450 and we're left with 280.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2800, and continue the process.

Let's proceed to step 16:
When dividing 2800 by 585, we get 4 with a remainder of 460.
Write down 4 as next digit of the result. 
Result so far: 169256.64786324
If we subtract 2340 from 2800, we get 460.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4600, and continue the process.

After the division, we end up with 169256.64786324 and a remainder of 4.6e-07.