We look at the division of 684272 by 7 
The aim is to understand the frequency of 7 in 684272.

Advancing to step 1:
7 can be fit into 6 0 times, resulting in a remainder of 6.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 6, we end up with 6.
Take the next digit (8) from the dividend and append it to 6, then repeat: 68 / 7

Moving on to step 2:
If we divide 68 by 7, we get 9 and a remainder of 5.
The next digit of our result is 9. 
Result so far: 9.0
Deduct 63 from 68 and we're left with 5.
Bring next digit (4) of the dividend behind the 5 and repeat the process: 54 / 7

Moving on to step 3:
If we divide 54 by 7, we get 7 and a remainder of 5.
Record the quotient 7 as the next digit in the result. 
Result so far: 97.0
If we subtract 49 from 54, we get 5.
Take the next digit (2) from the dividend and append it to 5, then repeat: 52 / 7

On to step 4:
When dividing 52 by 7, we get 7 with a remainder of 3.
Put 7 as the next digit of the answer. 
Result so far: 977.0
If we subtract 49 from 52, we get 3.
Append the next digit (7) from the dividend to 3 and continue with: 37 / 7

Let's proceed to step 5:
When dividing 37 by 7, we get 5 with a remainder of 2.
The next digit of our result is 5. 
Result so far: 9775.0
Subtracting 35 from 37 leaves us with 2.
Bring next digit (2) of the dividend behind the 2 and repeat the process: 22 / 7

Going ahead to step 6:
If we divide 22 by 7, we get 3 and a remainder of 1.
The next digit of our result is 3. 
Result so far: 97753.0
If we take 21 away from 22, we end up with 1.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

Moving on to step 7:
When dividing 10 by 7, we get 1 with a remainder of 3.
Record the quotient 1 as the next digit in the result. 
Result so far: 97753.1
If we take 7 away from 10, we end up with 3.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

Advancing to step 8:
The number 7 fits into 30 4 times, leaving a remainder of 2.
The next digit of our result is 4. 
Result so far: 97753.14
The remainder is 2 after subtracting 28 from 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Advancing to step 9:
If we divide 20 by 7, we get 2 and a remainder of 6.
Put 2 as the next digit of the answer. 
Result so far: 97753.142
If we take 14 away from 20, we end up with 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Advancing to step 10:
7 can be fit into 60 8 times, resulting in a remainder of 4.
Write down 8 as next digit of the result. 
Result so far: 97753.1428
Subtracting 56 from 60 leaves us with 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Moving on to step 11:
7 can be fit into 40 5 times, resulting in a remainder of 5.
Put 5 as the next digit of the answer. 
Result so far: 97753.14285
Deduct 35 from 40 and we're left with 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

Let's proceed to step 12:
7 can be fit into 50 7 times, resulting in a remainder of 1.
Use 7 as the next digit of our solution. 
Result so far: 97753.142857
If we subtract 49 from 50, we get 1.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

Step 13:
When dividing 10 by 7, we get 1 with a remainder of 3.
Put 1 as the next digit of the answer. 
Result so far: 97753.1428571
If we subtract 7 from 10, we get 3.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

On to step 14:
The number 7 fits into 30 4 times, leaving a remainder of 2.
The next digit of our result is 4. 
Result so far: 97753.14285714
If we subtract 28 from 30, we get 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

The final result is 97753.14285714 with a remainder of 2e-09.