Let's divide 20563668 by 138
The aim is to understand the frequency of 138 in 20563668.

Going ahead to step 1:
138 can be fit into 2 0 times, resulting in a remainder of 2.
The next digit of our result is 0. 
Result so far: 0.0
Subtracting 0 from 2 leaves us with 2.
Include the next digit (0) from the dividend after 2, then repeat: 20 / 138

Let's proceed to step 2:
The number 138 fits into 20 0 times, leaving a remainder of 20.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 20, we get 20.
Include the next digit (5) from the dividend after 20, then repeat: 205 / 138

On to step 3:
205 divided by 138 is 1 with a remainder of 67.
Use 1 as the next digit of our solution. 
Result so far: 1.0
Subtracting 138 from 205 leaves us with 67.
Grab the next digit (6) from the dividend, add it to 67, then carry on: 676 / 138

Step 4:
676 divided by 138 is 4 with a remainder of 124.
The next digit of our result is 4. 
Result so far: 14.0
Subtract 552 from 676 to get 124.
Bring next digit (3) of the dividend behind the 124 and repeat the process: 1243 / 138

On to step 5:
138 goes into 1243 9 times with a remainder of 1.
Write down 9 as next digit of the result. 
Result so far: 149.0
Subtracting 1242 from 1243 leaves us with 1.
Bring next digit (6) of the dividend behind the 1 and repeat the process: 16 / 138

Step 6:
138 goes into 16 0 times with a remainder of 16.
Record the quotient 0 as the next digit in the result. 
Result so far: 1490.0
Subtract 0 from 16 to get 16.
Fetch the next digit (6) from the dividend, attach it to 16 and continue: 166 / 138

Step 7:
138 can be fit into 166 1 times, resulting in a remainder of 28.
Put 1 as the next digit of the answer. 
Result so far: 14901.0
The remainder is 28 after subtracting 138 from 166.
Bring next digit (8) of the dividend behind the 28 and repeat the process: 288 / 138

Step 8:
The number 138 fits into 288 2 times, leaving a remainder of 12.
The number 2 becomes the next digit in our result. 
Result so far: 149012.0
The remainder is 12 after subtracting 276 from 288.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

Going ahead to step 9:
The number 138 fits into 120 0 times, leaving a remainder of 120.
The number 0 becomes the next digit in our result. 
Result so far: 149012.0
Deduct 0 from 120 and we're left with 120.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1200, and continue the process.

Step 10:
1200 divided by 138 is 8 with a remainder of 96.
Put 8 as the next digit of the answer. 
Result so far: 149012.08
If we take 1104 away from 1200, we end up with 96.
Since there are no more digits in the dividend, we add a zero to the remainder making it 960, and continue the process.

Let's proceed to step 11:
138 goes into 960 6 times with a remainder of 132.
The next digit of our result is 6. 
Result so far: 149012.086
Deduct 828 from 960 and we're left with 132.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1320, and continue the process.

Moving on to step 12:
138 can be fit into 1320 9 times, resulting in a remainder of 78.
Record the quotient 9 as the next digit in the result. 
Result so far: 149012.0869
If we take 1242 away from 1320, we end up with 78.
Since there are no more digits in the dividend, we add a zero to the remainder making it 780, and continue the process.

Advancing to step 13:
780 divided by 138 is 5 with a remainder of 90.
The next digit of our result is 5. 
Result so far: 149012.08695
If we subtract 690 from 780, we get 90.
Since there are no more digits in the dividend, we add a zero to the remainder making it 900, and continue the process.

Moving on to step 14:
138 can be fit into 900 6 times, resulting in a remainder of 72.
Put 6 as the next digit of the answer. 
Result so far: 149012.086956
Subtract 828 from 900 to get 72.
Since there are no more digits in the dividend, we add a zero to the remainder making it 720, and continue the process.

Let's proceed to step 15:
The number 138 fits into 720 5 times, leaving a remainder of 30.
The next digit of our result is 5. 
Result so far: 149012.0869565
Deduct 690 from 720 and we're left 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.

Let's proceed to step 16:
138 can be fit into 300 2 times, resulting in a remainder of 24.
Use 2 as the next digit of our solution. 
Result so far: 149012.08695652
Subtract 276 from 300 to get 24.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

The final result is 149012.08695652 with a remainder of 2.4e-08.