We're dividing 85149500 by 638 
The aim is to understand the frequency of 638 in 85149500.

Moving on to step 1:
When dividing 8 by 638, we get 0 with a remainder of 8.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
The remainder is 8 after subtracting 0 from 8.
Fetch the next digit (5) from the dividend, attach it to 8 and continue: 85 / 638

Moving on to step 2:
638 goes into 85 0 times with a remainder of 85.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 85 after subtracting 0 from 85.
Append the next digit (1) from the dividend to 85 and continue with: 851 / 638

Moving on to step 3:
If we divide 851 by 638, we get 1 and a remainder of 213.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
Subtracting 638 from 851 leaves us with 213.
Grab the next digit (4) from the dividend, add it to 213, then carry on: 2134 / 638

Going ahead to step 4:
When dividing 2134 by 638, we get 3 with a remainder of 220.
The number 3 becomes the next digit in our result. 
Result so far: 13.0
The remainder is 220 after subtracting 1914 from 2134.
Grab the next digit (9) from the dividend, add it to 220, then carry on: 2209 / 638

Step 5:
2209 divided by 638 is 3 with a remainder of 295.
Use 3 as the next digit of our solution. 
Result so far: 133.0
If we subtract 1914 from 2209, we get 295.
Grab the next digit (5) from the dividend, add it to 295, then carry on: 2955 / 638

Step 6:
If we divide 2955 by 638, we get 4 and a remainder of 403.
The number 4 becomes the next digit in our result. 
Result so far: 1334.0
The remainder is 403 after subtracting 2552 from 2955.
Include the next digit (0) from the dividend after 403, then repeat: 4030 / 638

Let's proceed to step 7:
If we divide 4030 by 638, we get 6 and a remainder of 202.
Write down 6 as next digit of the result. 
Result so far: 13346.0
If we take 3828 away from 4030, we end up with 202.
Include the next digit (0) from the dividend after 202, then repeat: 2020 / 638

Step 8:
638 goes into 2020 3 times with a remainder of 106.
The number 3 becomes the next digit in our result. 
Result so far: 133463.0
If we subtract 1914 from 2020, we get 106.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1060, and continue the process.

On to step 9:
638 goes into 1060 1 times with a remainder of 422.
Use 1 as the next digit of our solution. 
Result so far: 133463.1
Deduct 638 from 1060 and we're left with 422.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4220, and continue the process.

Step 10:
4220 divided by 638 is 6 with a remainder of 392.
The next digit of our result is 6. 
Result so far: 133463.16
If we subtract 3828 from 4220, we get 392.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3920, and continue the process.

Going ahead to step 11:
638 goes into 3920 6 times with a remainder of 92.
Record the quotient 6 as the next digit in the result. 
Result so far: 133463.166
The remainder is 92 after subtracting 3828 from 3920.
Since there are no more digits in the dividend, we add a zero to the remainder making it 920, and continue the process.

After the division, we end up with 133463.166 and a remainder of 0.0092.