We look at the division of 81220944 by 38 
The aim is to understand the frequency of 38 in 81220944.

Going ahead to step 1:
If we divide 8 by 38, we get 0 and a remainder of 8.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 8 after subtracting 0 from 8.
Bring next digit (1) of the dividend behind the 8 and repeat the process: 81 / 38

Advancing to step 2:
38 can be fit into 81 2 times, resulting in a remainder of 5.
Put 2 as the next digit of the answer. 
Result so far: 2.0
If we take 76 away from 81, we end up with 5.
Fetch the next digit (2) from the dividend, attach it to 5 and continue: 52 / 38

On to step 3:
52 divided by 38 is 1 with a remainder of 14.
Use 1 as the next digit of our solution. 
Result so far: 21.0
If we subtract 38 from 52, we get 14.
Include the next digit (2) from the dividend after 14, then repeat: 142 / 38

Moving on to step 4:
38 goes into 142 3 times with a remainder of 28.
The next digit of our result is 3. 
Result so far: 213.0
Deduct 114 from 142 and we're left with 28.
Bring next digit (0) of the dividend behind the 28 and repeat the process: 280 / 38

Let's proceed to step 5:
If we divide 280 by 38, we get 7 and a remainder of 14.
The number 7 becomes the next digit in our result. 
Result so far: 2137.0
If we take 266 away from 280, we end up with 14.
Include the next digit (9) from the dividend after 14, then repeat: 149 / 38

Advancing to step 6:
38 goes into 149 3 times with a remainder of 35.
Put 3 as the next digit of the answer. 
Result so far: 21373.0
Subtracting 114 from 149 leaves us with 35.
Grab the next digit (4) from the dividend, add it to 35, then carry on: 354 / 38

Let's proceed to step 7:
If we divide 354 by 38, we get 9 and a remainder of 12.
The number 9 becomes the next digit in our result. 
Result so far: 213739.0
Subtract 342 from 354 to get 12.
Grab the next digit (4) from the dividend, add it to 12, then carry on: 124 / 38

Going ahead to step 8:
38 can be fit into 124 3 times, resulting in a remainder of 10.
Use 3 as the next digit of our solution. 
Result so far: 2137393.0
The remainder is 10 after subtracting 114 from 124.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

On to step 9:
When dividing 100 by 38, we get 2 with a remainder of 24.
Put 2 as the next digit of the answer. 
Result so far: 2137393.2
The remainder is 24 after subtracting 76 from 100.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

Step 10:
The number 38 fits into 240 6 times, leaving a remainder of 12.
Use 6 as the next digit of our solution. 
Result so far: 2137393.26
The remainder is 12 after subtracting 228 from 240.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

Moving on to step 11:
When dividing 120 by 38, we get 3 with a remainder of 6.
Record the quotient 3 as the next digit in the result. 
Result so far: 2137393.263
The remainder is 6 after subtracting 114 from 120.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

On to step 12:
60 divided by 38 is 1 with a remainder of 22.
Use 1 as the next digit of our solution. 
Result so far: 2137393.2631
Subtracting 38 from 60 leaves us with 22.
Since there are no more digits in the dividend, we add a zero to the remainder making it 220, and continue the process.

Moving on to step 13:
The number 38 fits into 220 5 times, leaving a remainder of 30.
Write down 5 as next digit of the result. 
Result so far: 2137393.26315
Subtracting 190 from 220 leaves us with 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Advancing to step 14:
If we divide 300 by 38, we get 7 and a remainder of 34.
The number 7 becomes the next digit in our result. 
Result so far: 2137393.263157
The remainder is 34 after subtracting 266 from 300.
Since there are no more digits in the dividend, we add a zero to the remainder making it 340, and continue the process.

Step 15:
When dividing 340 by 38, we get 8 with a remainder of 36.
Write down 8 as next digit of the result. 
Result so far: 2137393.2631578
Subtract 304 from 340 to get 36.
Since there are no more digits in the dividend, we add a zero to the remainder making it 360, and continue the process.

Let's proceed to step 16:
If we divide 360 by 38, we get 9 and a remainder of 18.
The number 9 becomes the next digit in our result. 
Result so far: 2137393.26315789
If we subtract 342 from 360, we get 18.
Since there are no more digits in the dividend, we add a zero to the remainder making it 180, and continue the process.

The final result is 2137393.26315789 with a remainder of 1.8e-08.