9960456 divided by 7 
The aim is to understand the frequency of 7 in 9960456.

Advancing to step 1:
7 can be fit into 9 1 times, resulting in a remainder of 2.
Use 1 as the next digit of our solution. 
Result so far: 1.0
Subtract 7 from 9 to get 2.
Bring next digit (9) of the dividend behind the 2 and repeat the process: 29 / 7

On to step 2:
29 divided by 7 is 4 with a remainder of 1.
Use 4 as the next digit of our solution. 
Result so far: 14.0
Deduct 28 from 29 and we're left with 1.
Append the next digit (6) from the dividend to 1 and continue with: 16 / 7

Let's proceed to step 3:
7 goes into 16 2 times with a remainder of 2.
The next digit of our result is 2. 
Result so far: 142.0
Subtracting 14 from 16 leaves us with 2.
Grab the next digit (0) from the dividend, add it to 2, then carry on: 20 / 7

Advancing to step 4:
7 can be fit into 20 2 times, resulting in a remainder of 6.
Write down 2 as next digit of the result. 
Result so far: 1422.0
If we subtract 14 from 20, we get 6.
Include the next digit (4) from the dividend after 6, then repeat: 64 / 7

On to step 5:
The number 7 fits into 64 9 times, leaving a remainder of 1.
Use 9 as the next digit of our solution. 
Result so far: 14229.0
Subtract 63 from 64 to get 1.
Include the next digit (5) from the dividend after 1, then repeat: 15 / 7

Advancing to step 6:
When dividing 15 by 7, we get 2 with a remainder of 1.
The next digit of our result is 2. 
Result so far: 142292.0
Subtracting 14 from 15 leaves us with 1.
Fetch the next digit (6) from the dividend, attach it to 1 and continue: 16 / 7

Going ahead to step 7:
7 goes into 16 2 times with a remainder of 2.
Write down 2 as next digit of the result. 
Result so far: 1422922.0
Subtracting 14 from 16 leaves us with 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 8:
7 can be fit into 20 2 times, resulting in a remainder of 6.
Write down 2 as next digit of the result. 
Result so far: 1422922.2
Subtracting 14 from 20 leaves us 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 9:
7 goes into 60 8 times with a remainder of 4.
The number 8 becomes the next digit in our result. 
Result so far: 1422922.28
If we subtract 56 from 60, we get 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Let's proceed to step 10:
40 divided by 7 is 5 with a remainder of 5.
Use 5 as the next digit of our solution. 
Result so far: 1422922.285
If we subtract 35 from 40, we get 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

Advancing to step 11:
When dividing 50 by 7, we get 7 with a remainder of 1.
The number 7 becomes the next digit in our result. 
Result so far: 1422922.2857
The remainder is 1 after subtracting 49 from 50.
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 12:
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: 1422922.28571
Subtract 7 from 10 to 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.

Step 13:
7 goes into 30 4 times with a remainder of 2.
The next digit of our result is 4. 
Result so far: 1422922.285714
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.

On to step 14:
If we divide 20 by 7, we get 2 and a remainder of 6.
The next digit of our result is 2. 
Result so far: 1422922.2857142
Deduct 14 from 20 and we're left 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.

Let's proceed to step 15:
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: 1422922.28571428
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.

The quotient of the division is 1422922.28571428, and the remainder is 4e-09.