453458 ÷ 7 
The aim is to understand the frequency of 7 in 453458.

Going ahead to step 1:
7 can be fit into 4 0 times, resulting in a remainder of 4.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 4, we end up with 4.
Fetch the next digit (5) from the dividend, attach it to 4 and continue: 45 / 7

Step 2:
The number 7 fits into 45 6 times, leaving a remainder of 3.
Put 6 as the next digit of the answer. 
Result so far: 6.0
If we subtract 42 from 45, we get 3.
Fetch the next digit (3) from the dividend, attach it to 3 and continue: 33 / 7

Let's proceed to step 3:
When dividing 33 by 7, we get 4 with a remainder of 5.
Use 4 as the next digit of our solution. 
Result so far: 64.0
If we subtract 28 from 33, we get 5.
Fetch the next digit (4) from the dividend, attach it to 5 and continue: 54 / 7

Step 4:
The number 7 fits into 54 7 times, leaving a remainder of 5.
Write down 7 as next digit of the result. 
Result so far: 647.0
If we take 49 away from 54, we end up with 5.
Fetch the next digit (5) from the dividend, attach it to 5 and continue: 55 / 7

Going ahead to step 5:
7 goes into 55 7 times with a remainder of 6.
Use 7 as the next digit of our solution. 
Result so far: 6477.0
Subtract 49 from 55 to get 6.
Grab the next digit (8) from the dividend, add it to 6, then carry on: 68 / 7

Step 6:
7 can be fit into 68 9 times, resulting in a remainder of 5.
Record the quotient 9 as the next digit in the result. 
Result so far: 64779.0
The remainder is 5 after subtracting 63 from 68.
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:
The number 7 fits into 50 7 times, leaving a remainder of 1.
Put 7 as the next digit of the answer. 
Result so far: 64779.7
Subtracting 49 from 50 leaves us 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 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: 64779.71
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.

Step 9:
30 divided by 7 is 4 with a remainder of 2.
Put 4 as the next digit of the answer. 
Result so far: 64779.714
Subtract 28 from 30 to 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.

Going ahead to step 10:
The number 7 fits into 20 2 times, leaving a remainder of 6.
Record the quotient 2 as the next digit in the result. 
Result so far: 64779.7142
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.

Step 11:
60 divided by 7 is 8 with a remainder of 4.
The number 8 becomes the next digit in our result. 
Result so far: 64779.71428
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.

Going ahead to step 12:
If we divide 40 by 7, we get 5 and a remainder of 5.
Record the quotient 5 as the next digit in the result. 
Result so far: 64779.714285
The remainder is 5 after subtracting 35 from 40.
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:
When dividing 50 by 7, we get 7 with a remainder of 1.
Record the quotient 7 as the next digit in the result. 
Result so far: 64779.7142857
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.

Let's proceed to step 14:
If we divide 10 by 7, we get 1 and a remainder of 3.
Record the quotient 1 as the next digit in the result. 
Result so far: 64779.71428571
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.

After the division, we end up with 64779.71428571 and a remainder of 3e-09.