We're dividing 453556 by 7 
The aim is to understand the frequency of 7 in 453556.

Moving on to step 1:
When dividing 4 by 7, we get 0 with a remainder of 4.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 4 leaves us with 4.
Grab the next digit (5) from the dividend, add it to 4, then carry on: 45 / 7

On to step 2:
7 can be fit into 45 6 times, resulting in a remainder of 3.
Put 6 as the next digit of the answer. 
Result so far: 6.0
Deduct 42 from 45 and we're left with 3.
Take the next digit (3) from the dividend and append it to 3, then repeat: 33 / 7

On to step 3:
7 goes into 33 4 times with a remainder of 5.
Record the quotient 4 as the next digit in the result. 
Result so far: 64.0
The remainder is 5 after subtracting 28 from 33.
Include the next digit (5) from the dividend after 5, then repeat: 55 / 7

On to step 4:
When dividing 55 by 7, we get 7 with a remainder of 6.
Write down 7 as next digit of the result. 
Result so far: 647.0
If we subtract 49 from 55, we get 6.
Bring next digit (5) of the dividend behind the 6 and repeat the process: 65 / 7

On to step 5:
When dividing 65 by 7, we get 9 with a remainder of 2.
Put 9 as the next digit of the answer. 
Result so far: 6479.0
Subtract 63 from 65 to get 2.
Append the next digit (6) from the dividend to 2 and continue with: 26 / 7

Let's proceed to step 6:
7 goes into 26 3 times with a remainder of 5.
Use 3 as the next digit of our solution. 
Result so far: 64793.0
Subtract 21 from 26 to 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.

Going ahead to step 7:
If we divide 50 by 7, we get 7 and a remainder of 1.
Put 7 as the next digit of the answer. 
Result so far: 64793.7
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.

Let's proceed to step 8:
If we divide 10 by 7, we get 1 and a remainder of 3.
The number 1 becomes the next digit in our result. 
Result so far: 64793.71
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.

Moving on to step 9:
30 divided by 7 is 4 with a remainder of 2.
Record the quotient 4 as the next digit in the result. 
Result so far: 64793.714
Subtracting 28 from 30 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.

Moving on to step 10:
7 goes into 20 2 times with a remainder of 6.
Put 2 as the next digit of the answer. 
Result so far: 64793.7142
Subtract 14 from 20 to get 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Step 11:
7 goes into 60 8 times with a remainder of 4.
Put 8 as the next digit of the answer. 
Result so far: 64793.71428
The remainder is 4 after subtracting 56 from 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

On to step 12:
When dividing 40 by 7, we get 5 with a remainder of 5.
Write down 5 as next digit of the result. 
Result so far: 64793.714285
Subtract 35 from 40 to 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.

Moving on to step 13:
The number 7 fits into 50 7 times, leaving a remainder of 1.
Record the quotient 7 as the next digit in the result. 
Result so far: 64793.7142857
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.

Going ahead to step 14:
The number 7 fits into 10 1 times, leaving a remainder of 3.
Record the quotient 1 as the next digit in the result. 
Result so far: 64793.71428571
The remainder is 3 after subtracting 7 from 10.
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 64793.71428571 with a balance of 3e-09.