We're dividing 807425 by 7 
The aim is to understand the frequency of 7 in 807425.

Going ahead to step 1:
When dividing 8 by 7, we get 1 with a remainder of 1.
Write down 1 as next digit of the result. 
Result so far: 1.0
If we take 7 away from 8, we end up with 1.
Include the next digit (0) from the dividend after 1, then repeat: 10 / 7

On to step 2:
When dividing 10 by 7, we get 1 with a remainder of 3.
Put 1 as the next digit of the answer. 
Result so far: 11.0
If we take 7 away from 10, we end up with 3.
Take the next digit (7) from the dividend and append it to 3, then repeat: 37 / 7

Step 3:
The number 7 fits into 37 5 times, leaving a remainder of 2.
Record the quotient 5 as the next digit in the result. 
Result so far: 115.0
Subtracting 35 from 37 leaves us with 2.
Append the next digit (4) from the dividend to 2 and continue with: 24 / 7

On to step 4:
7 goes into 24 3 times with a remainder of 3.
The next digit of our result is 3. 
Result so far: 1153.0
The remainder is 3 after subtracting 21 from 24.
Grab the next digit (2) from the dividend, add it to 3, then carry on: 32 / 7

Step 5:
The number 7 fits into 32 4 times, leaving a remainder of 4.
Write down 4 as next digit of the result. 
Result so far: 11534.0
If we subtract 28 from 32, we get 4.
Include the next digit (5) from the dividend after 4, then repeat: 45 / 7

Step 6:
7 goes into 45 6 times with a remainder of 3.
Put 6 as the next digit of the answer. 
Result so far: 115346.0
The remainder is 3 after subtracting 42 from 45.
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 7:
The number 7 fits into 30 4 times, leaving a remainder of 2.
The next digit of our result is 4. 
Result so far: 115346.4
If we take 28 away from 30, we end up 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.

Going ahead to step 8:
The number 7 fits into 20 2 times, leaving a remainder of 6.
Write down 2 as next digit of the result. 
Result so far: 115346.42
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.

Advancing to step 9:
The number 7 fits into 60 8 times, leaving a remainder of 4.
Use 8 as the next digit of our solution. 
Result so far: 115346.428
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.

Let's proceed to step 10:
The number 7 fits into 40 5 times, leaving a remainder of 5.
Use 5 as the next digit of our solution. 
Result so far: 115346.4285
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.

Let's proceed to step 11:
When dividing 50 by 7, we get 7 with a remainder of 1.
The next digit of our result is 7. 
Result so far: 115346.42857
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 12:
7 can be fit into 10 1 times, resulting in a remainder of 3.
Write down 1 as next digit of the result. 
Result so far: 115346.428571
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 13:
If we divide 30 by 7, we get 4 and a remainder of 2.
The next digit of our result is 4. 
Result so far: 115346.4285714
If we take 28 away from 30, we end up 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.

Going ahead to step 14:
If we divide 20 by 7, we get 2 and a remainder of 6.
The number 2 becomes the next digit in our result. 
Result so far: 115346.42857142
The remainder is 6 after subtracting 14 from 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

The final result is 115346.42857142 with a remainder of 6e-09.