Let's divide 691866 by 7
The aim is to understand the frequency of 7 in 691866.

Going ahead to step 1:
7 can be fit into 6 0 times, resulting in a remainder of 6.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 6 to get 6.
Bring next digit (9) of the dividend behind the 6 and repeat the process: 69 / 7

Advancing to step 2:
69 divided by 7 is 9 with a remainder of 6.
Write down 9 as next digit of the result. 
Result so far: 9.0
Deduct 63 from 69 and we're left with 6.
Fetch the next digit (1) from the dividend, attach it to 6 and continue: 61 / 7

Let's proceed to step 3:
7 goes into 61 8 times with a remainder of 5.
Use 8 as the next digit of our solution. 
Result so far: 98.0
The remainder is 5 after subtracting 56 from 61.
Grab the next digit (8) from the dividend, add it to 5, then carry on: 58 / 7

On to step 4:
When dividing 58 by 7, we get 8 with a remainder of 2.
Record the quotient 8 as the next digit in the result. 
Result so far: 988.0
Deduct 56 from 58 and we're left with 2.
Append the next digit (6) from the dividend to 2 and continue with: 26 / 7

Going ahead to step 5:
The number 7 fits into 26 3 times, leaving a remainder of 5.
The next digit of our result is 3. 
Result so far: 9883.0
Deduct 21 from 26 and we're left with 5.
Grab the next digit (6) from the dividend, add it to 5, then carry on: 56 / 7

Going ahead to step 6:
56 divided by 7 is 8 with a remainder of 0.
Write down 8 as next digit of the result. 
Result so far: 98838.0
The remainder is 0 after subtracting 56 from 56.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Let's proceed to step 7:
0 divided by 7 is 0 with a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 98838.0
If we subtract 0 from 0, we get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Step 8:
When dividing 0 by 7, we get 0 with a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 98838.0
The remainder is 0 after subtracting 0 from 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

In conclusion, the division gives 98838.0 with a balance of 0.0.