We're dividing 20209876 by 787 
The aim is to understand the frequency of 787 in 20209876.

On to step 1:
787 goes into 2 0 times with a remainder of 2.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtracting 0 from 2 leaves us with 2.
Fetch the next digit (0) from the dividend, attach it to 2 and continue: 20 / 787

Moving on to step 2:
787 goes into 20 0 times with 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.
Fetch the next digit (2) from the dividend, attach it to 20 and continue: 202 / 787

Step 3:
202 divided by 787 is 0 with a remainder of 202.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 202 to get 202.
Grab the next digit (0) from the dividend, add it to 202, then carry on: 2020 / 787

Let's proceed to step 4:
2020 divided by 787 is 2 with a remainder of 446.
The next digit of our result is 2. 
Result so far: 2.0
If we take 1574 away from 2020, we end up with 446.
Append the next digit (9) from the dividend to 446 and continue with: 4469 / 787

Going ahead to step 5:
4469 divided by 787 is 5 with a remainder of 534.
Record the quotient 5 as the next digit in the result. 
Result so far: 25.0
Deduct 3935 from 4469 and we're left with 534.
Bring next digit (8) of the dividend behind the 534 and repeat the process: 5348 / 787

Advancing to step 6:
The number 787 fits into 5348 6 times, leaving a remainder of 626.
The number 6 becomes the next digit in our result. 
Result so far: 256.0
If we take 4722 away from 5348, we end up with 626.
Take the next digit (7) from the dividend and append it to 626, then repeat: 6267 / 787

Advancing to step 7:
787 goes into 6267 7 times with a remainder of 758.
Use 7 as the next digit of our solution. 
Result so far: 2567.0
If we take 5509 away from 6267, we end up with 758.
Include the next digit (6) from the dividend after 758, then repeat: 7586 / 787

On to step 8:
When dividing 7586 by 787, we get 9 with a remainder of 503.
Write down 9 as next digit of the result. 
Result so far: 25679.0
The remainder is 503 after subtracting 7083 from 7586.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5030, and continue the process.

On to step 9:
787 can be fit into 5030 6 times, resulting in a remainder of 308.
Put 6 as the next digit of the answer. 
Result so far: 25679.6
If we subtract 4722 from 5030, we get 308.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3080, and continue the process.

Step 10:
If we divide 3080 by 787, we get 3 and a remainder of 719.
Put 3 as the next digit of the answer. 
Result so far: 25679.63
Subtract 2361 from 3080 to get 719.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7190, and continue the process.

Step 11:
7190 divided by 787 is 9 with a remainder of 107.
Record the quotient 9 as the next digit in the result. 
Result so far: 25679.639
If we take 7083 away from 7190, we end up with 107.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1070, and continue the process.

Let's proceed to step 12:
1070 divided by 787 is 1 with a remainder of 283.
Record the quotient 1 as the next digit in the result. 
Result so far: 25679.6391
If we subtract 787 from 1070, we get 283.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2830, and continue the process.

Moving on to step 13:
If we divide 2830 by 787, we get 3 and a remainder of 469.
Record the quotient 3 as the next digit in the result. 
Result so far: 25679.63913
If we take 2361 away from 2830, we end up with 469.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4690, and continue the process.

Moving on to step 14:
The number 787 fits into 4690 5 times, leaving a remainder of 755.
Use 5 as the next digit of our solution. 
Result so far: 25679.639135
If we take 3935 away from 4690, we end up with 755.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7550, and continue the process.

Advancing to step 15:
The number 787 fits into 7550 9 times, leaving a remainder of 467.
Write down 9 as next digit of the result. 
Result so far: 25679.6391359
If we subtract 7083 from 7550, we get 467.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4670, and continue the process.

Advancing to step 16:
4670 divided by 787 is 5 with a remainder of 735.
The next digit of our result is 5. 
Result so far: 25679.63913595
Subtracting 3935 from 4670 leaves us with 735.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7350, and continue the process.

Our division results in 25679.63913595 with a remaining 7.35e-07.