966257 divided by 7 
The aim is to understand the frequency of 7 in 966257.

Let's proceed to step 1:
When dividing 9 by 7, we get 1 with a remainder of 2.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
Deduct 7 from 9 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 2:
If we divide 26 by 7, we get 3 and a remainder of 5.
Use 3 as the next digit of our solution. 
Result so far: 13.0
The remainder is 5 after subtracting 21 from 26.
Take the next digit (6) from the dividend and append it to 5, then repeat: 56 / 7

Advancing to step 3:
56 divided by 7 is 8 with a remainder of 0.
Record the quotient 8 as the next digit in the result. 
Result so far: 138.0
Deduct 56 from 56 and we're left with 0.
Grab the next digit (2) from the dividend, add it to 0, then carry on: 2 / 7

Going ahead to step 4:
When dividing 2 by 7, we get 0 with a remainder of 2.
Put 0 as the next digit of the answer. 
Result so far: 1380.0
If we subtract 0 from 2, we get 2.
Append the next digit (5) from the dividend to 2 and continue with: 25 / 7

Moving on to step 5:
If we divide 25 by 7, we get 3 and a remainder of 4.
Record the quotient 3 as the next digit in the result. 
Result so far: 13803.0
The remainder is 4 after subtracting 21 from 25.
Include the next digit (7) from the dividend after 4, then repeat: 47 / 7

Moving on to step 6:
7 goes into 47 6 times with a remainder of 5.
Record the quotient 6 as the next digit in the result. 
Result so far: 138036.0
Deduct 42 from 47 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.

On to step 7:
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: 138036.7
Deduct 49 from 50 and we're left 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.

Advancing to step 8:
10 divided by 7 is 1 with a remainder of 3.
The number 1 becomes the next digit in our result. 
Result so far: 138036.71
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.

Let's proceed to step 9:
7 can be fit into 30 4 times, resulting in a remainder of 2.
Write down 4 as next digit of the result. 
Result so far: 138036.714
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.

Step 10:
7 can be fit into 20 2 times, resulting in a remainder of 6.
The number 2 becomes the next digit in our result. 
Result so far: 138036.7142
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.

Going ahead to step 11:
7 goes into 60 8 times with a remainder of 4.
Record the quotient 8 as the next digit in the result. 
Result so far: 138036.71428
Deduct 56 from 60 and we're left 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 12:
7 can be fit into 40 5 times, resulting in a remainder of 5.
The next digit of our result is 5. 
Result so far: 138036.714285
If we take 35 away from 40, we end up 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.

Step 13:
7 goes into 50 7 times with a remainder of 1.
Put 7 as the next digit of the answer. 
Result so far: 138036.7142857
Subtract 49 from 50 to 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.

Moving on to step 14:
7 can be fit into 10 1 times, resulting in a remainder of 3.
The number 1 becomes the next digit in our result. 
Result so far: 138036.71428571
Deduct 7 from 10 and we're left 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.

In conclusion, the division gives 138036.71428571 with a balance of 3e-09.