63985141 ÷ 38 
The aim is to understand the frequency of 38 in 63985141.

Step 1:
38 can be fit into 6 0 times, resulting in a remainder of 6.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtracting 0 from 6 leaves us with 6.
Append the next digit (3) from the dividend to 6 and continue with: 63 / 38

Let's proceed to step 2:
The number 38 fits into 63 1 times, leaving a remainder of 25.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
Deduct 38 from 63 and we're left with 25.
Grab the next digit (9) from the dividend, add it to 25, then carry on: 259 / 38

Advancing to step 3:
If we divide 259 by 38, we get 6 and a remainder of 31.
The next digit of our result is 6. 
Result so far: 16.0
Subtracting 228 from 259 leaves us with 31.
Take the next digit (8) from the dividend and append it to 31, then repeat: 318 / 38

Advancing to step 4:
If we divide 318 by 38, we get 8 and a remainder of 14.
The number 8 becomes the next digit in our result. 
Result so far: 168.0
The remainder is 14 after subtracting 304 from 318.
Bring next digit (5) of the dividend behind the 14 and repeat the process: 145 / 38

Step 5:
38 can be fit into 145 3 times, resulting in a remainder of 31.
Record the quotient 3 as the next digit in the result. 
Result so far: 1683.0
The remainder is 31 after subtracting 114 from 145.
Include the next digit (1) from the dividend after 31, then repeat: 311 / 38

Advancing to step 6:
38 goes into 311 8 times with a remainder of 7.
Put 8 as the next digit of the answer. 
Result so far: 16838.0
Deduct 304 from 311 and we're left with 7.
Include the next digit (4) from the dividend after 7, then repeat: 74 / 38

On to step 7:
74 divided by 38 is 1 with a remainder of 36.
The next digit of our result is 1. 
Result so far: 168381.0
If we subtract 38 from 74, we get 36.
Include the next digit (1) from the dividend after 36, then repeat: 361 / 38

Step 8:
When dividing 361 by 38, we get 9 with a remainder of 19.
The next digit of our result is 9. 
Result so far: 1683819.0
If we subtract 342 from 361, we get 19.
Since there are no more digits in the dividend, we add a zero to the remainder making it 190, and continue the process.

Step 9:
If we divide 190 by 38, we get 5 and a remainder of 0.
The next digit of our result is 5. 
Result so far: 1683819.5
Subtract 190 from 190 to get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Moving on to step 10:
0 divided by 38 is 0 with a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 1683819.5
The remainder is 0 after subtracting 0 from 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

On to step 11:
38 goes into 0 0 times with a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 1683819.5
Subtracting 0 from 0 leaves us with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

After the division, we end up with 1683819.5 and a remainder of 0.0.