472519 ÷ 7 
The aim is to understand the frequency of 7 in 472519.

Let's proceed to step 1:
When dividing 4 by 7, we get 0 with a remainder of 4.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 4 after subtracting 0 from 4.
Take the next digit (7) from the dividend and append it to 4, then repeat: 47 / 7

Moving on to step 2:
7 goes into 47 6 times with a remainder of 5.
The number 6 becomes the next digit in our result. 
Result so far: 6.0
Subtract 42 from 47 to get 5.
Fetch the next digit (2) from the dividend, attach it to 5 and continue: 52 / 7

Going ahead to step 3:
7 can be fit into 52 7 times, resulting in a remainder of 3.
The number 7 becomes the next digit in our result. 
Result so far: 67.0
Subtract 49 from 52 to get 3.
Bring next digit (5) of the dividend behind the 3 and repeat the process: 35 / 7

Advancing to step 4:
If we divide 35 by 7, we get 5 and a remainder of 0.
Write down 5 as next digit of the result. 
Result so far: 675.0
Subtracting 35 from 35 leaves us with 0.
Grab the next digit (1) from the dividend, add it to 0, then carry on: 1 / 7

Going ahead to step 5:
1 divided by 7 is 0 with a remainder of 1.
The next digit of our result is 0. 
Result so far: 6750.0
If we take 0 away from 1, we end up with 1.
Take the next digit (9) from the dividend and append it to 1, then repeat: 19 / 7

Advancing to step 6:
7 can be fit into 19 2 times, resulting in a remainder of 5.
The number 2 becomes the next digit in our result. 
Result so far: 67502.0
Subtract 14 from 19 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:
The number 7 fits into 50 7 times, leaving a remainder of 1.
Use 7 as the next digit of our solution. 
Result so far: 67502.7
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.

Advancing to step 8:
If we divide 10 by 7, we get 1 and a remainder of 3.
Put 1 as the next digit of the answer. 
Result so far: 67502.71
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.

Going ahead to step 9:
30 divided by 7 is 4 with a remainder of 2.
The number 4 becomes the next digit in our result. 
Result so far: 67502.714
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.

Step 10:
When dividing 20 by 7, we get 2 with a remainder of 6.
Use 2 as the next digit of our solution. 
Result so far: 67502.7142
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.

Let's proceed to step 11:
60 divided by 7 is 8 with a remainder of 4.
Use 8 as the next digit of our solution. 
Result so far: 67502.71428
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.

Moving on to step 12:
When dividing 40 by 7, we get 5 with a remainder of 5.
Record the quotient 5 as the next digit in the result. 
Result so far: 67502.714285
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.

On to step 13:
7 can be fit into 50 7 times, resulting in a remainder of 1.
Put 7 as the next digit of the answer. 
Result so far: 67502.7142857
If we take 49 away from 50, we end up 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 14:
When dividing 10 by 7, we get 1 with a remainder of 3.
The next digit of our result is 1. 
Result so far: 67502.71428571
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.

The final result is 67502.71428571 with a remainder of 3e-09.