We're dividing 20399138 by 784 
The aim is to understand the frequency of 784 in 20399138.

Moving on to step 1:
When dividing 2 by 784, we get 0 with a remainder of 2.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 2 and we're left with 2.
Take the next digit (0) from the dividend and append it to 2, then repeat: 20 / 784

Let's proceed to step 2:
784 can be fit into 20 0 times, resulting in a remainder of 20.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we subtract 0 from 20, we get 20.
Grab the next digit (3) from the dividend, add it to 20, then carry on: 203 / 784

Let's proceed to step 3:
784 can be fit into 203 0 times, resulting in a remainder of 203.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 203 and we're left with 203.
Bring next digit (9) of the dividend behind the 203 and repeat the process: 2039 / 784

Let's proceed to step 4:
784 goes into 2039 2 times with a remainder of 471.
Record the quotient 2 as the next digit in the result. 
Result so far: 2.0
Deduct 1568 from 2039 and we're left with 471.
Bring next digit (9) of the dividend behind the 471 and repeat the process: 4719 / 784

Advancing to step 5:
784 can be fit into 4719 6 times, resulting in a remainder of 15.
The number 6 becomes the next digit in our result. 
Result so far: 26.0
The remainder is 15 after subtracting 4704 from 4719.
Append the next digit (1) from the dividend to 15 and continue with: 151 / 784

On to step 6:
784 can be fit into 151 0 times, resulting in a remainder of 151.
Use 0 as the next digit of our solution. 
Result so far: 260.0
Subtracting 0 from 151 leaves us with 151.
Take the next digit (3) from the dividend and append it to 151, then repeat: 1513 / 784

Moving on to step 7:
If we divide 1513 by 784, we get 1 and a remainder of 729.
Use 1 as the next digit of our solution. 
Result so far: 2601.0
The remainder is 729 after subtracting 784 from 1513.
Grab the next digit (8) from the dividend, add it to 729, then carry on: 7298 / 784

Step 8:
7298 divided by 784 is 9 with a remainder of 242.
Write down 9 as next digit of the result. 
Result so far: 26019.0
Subtracting 7056 from 7298 leaves us with 242.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2420, and continue the process.

Advancing to step 9:
When dividing 2420 by 784, we get 3 with a remainder of 68.
The next digit of our result is 3. 
Result so far: 26019.3
Subtract 2352 from 2420 to get 68.
Since there are no more digits in the dividend, we add a zero to the remainder making it 680, and continue the process.

Going ahead to step 10:
784 can be fit into 680 0 times, resulting in a remainder of 680.
The next digit of our result is 0. 
Result so far: 26019.3
If we take 0 away from 680, we end up with 680.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6800, and continue the process.

Advancing to step 11:
When dividing 6800 by 784, we get 8 with a remainder of 528.
Put 8 as the next digit of the answer. 
Result so far: 26019.308
If we take 6272 away from 6800, we end up with 528.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5280, and continue the process.

Advancing to step 12:
784 goes into 5280 6 times with a remainder of 576.
The number 6 becomes the next digit in our result. 
Result so far: 26019.3086
Subtracting 4704 from 5280 leaves us with 576.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5760, and continue the process.

Moving on to step 13:
When dividing 5760 by 784, we get 7 with a remainder of 272.
The number 7 becomes the next digit in our result. 
Result so far: 26019.30867
If we take 5488 away from 5760, we end up with 272.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2720, and continue the process.

Advancing to step 14:
If we divide 2720 by 784, we get 3 and a remainder of 368.
Use 3 as the next digit of our solution. 
Result so far: 26019.308673
The remainder is 368 after subtracting 2352 from 2720.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3680, and continue the process.

Going ahead to step 15:
When dividing 3680 by 784, we get 4 with a remainder of 544.
The next digit of our result is 4. 
Result so far: 26019.3086734
Deduct 3136 from 3680 and we're left with 544.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5440, and continue the process.

Step 16:
If we divide 5440 by 784, we get 6 and a remainder of 736.
Put 6 as the next digit of the answer. 
Result so far: 26019.30867346
If we subtract 4704 from 5440, we get 736.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7360, and continue the process.

The final outcome is 26019.30867346, with a leftover of 7.36e-07.