We divide 638685 by 38
The aim is to understand the frequency of 38 in 638685.

Advancing to step 1:
When dividing 6 by 38, we get 0 with a remainder of 6.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 6 and we're left with 6.
Include the next digit (3) from the dividend after 6, then repeat: 63 / 38

Step 2:
38 goes into 63 1 times with a remainder of 25.
Write down 1 as next digit of the result. 
Result so far: 1.0
The remainder is 25 after subtracting 38 from 63.
Include the next digit (8) from the dividend after 25, then repeat: 258 / 38

Moving on to step 3:
38 can be fit into 258 6 times, resulting in a remainder of 30.
The number 6 becomes the next digit in our result. 
Result so far: 16.0
The remainder is 30 after subtracting 228 from 258.
Fetch the next digit (6) from the dividend, attach it to 30 and continue: 306 / 38

Advancing to step 4:
38 can be fit into 306 8 times, resulting in a remainder of 2.
Write down 8 as next digit of the result. 
Result so far: 168.0
If we take 304 away from 306, we end up with 2.
Append the next digit (8) from the dividend to 2 and continue with: 28 / 38

Step 5:
When dividing 28 by 38, we get 0 with a remainder of 28.
The next digit of our result is 0. 
Result so far: 1680.0
Subtract 0 from 28 to get 28.
Append the next digit (5) from the dividend to 28 and continue with: 285 / 38

On to step 6:
If we divide 285 by 38, we get 7 and a remainder of 19.
Put 7 as the next digit of the answer. 
Result so far: 16807.0
The remainder is 19 after subtracting 266 from 285.
Since there are no more digits in the dividend, we add a zero to the remainder making it 190, and continue the process.

On to step 7:
When dividing 190 by 38, we get 5 with a remainder of 0.
Record the quotient 5 as the next digit in the result. 
Result so far: 16807.5
The remainder is 0 after subtracting 190 from 190.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Let's proceed to step 8:
If we divide 0 by 38, we get 0 and a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 16807.5
If we subtract 0 from 0, we 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.

Step 9:
If we divide 0 by 38, we get 0 and a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 16807.5
If we subtract 0 from 0, we 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.

The final outcome is 16807.5, with a leftover of 0.0.