We divide 604395 by 7
The aim is to understand the frequency of 7 in 604395.

Going ahead to step 1:
When dividing 6 by 7, we get 0 with a remainder of 6.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 6, we end up with 6.
Include the next digit (0) from the dividend after 6, then repeat: 60 / 7

Let's proceed to step 2:
60 divided by 7 is 8 with a remainder of 4.
Use 8 as the next digit of our solution. 
Result so far: 8.0
Subtract 56 from 60 to get 4.
Include the next digit (4) from the dividend after 4, then repeat: 44 / 7

Let's proceed to step 3:
44 divided by 7 is 6 with a remainder of 2.
Use 6 as the next digit of our solution. 
Result so far: 86.0
Deduct 42 from 44 and we're left with 2.
Append the next digit (3) from the dividend to 2 and continue with: 23 / 7

Advancing to step 4:
When dividing 23 by 7, we get 3 with a remainder of 2.
Record the quotient 3 as the next digit in the result. 
Result so far: 863.0
Deduct 21 from 23 and we're left with 2.
Include the next digit (9) from the dividend after 2, then repeat: 29 / 7

Step 5:
7 goes into 29 4 times with a remainder of 1.
Use 4 as the next digit of our solution. 
Result so far: 8634.0
Subtracting 28 from 29 leaves us with 1.
Include the next digit (5) from the dividend after 1, then repeat: 15 / 7

Let's proceed to step 6:
The number 7 fits into 15 2 times, leaving a remainder of 1.
Record the quotient 2 as the next digit in the result. 
Result so far: 86342.0
Subtract 14 from 15 to 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.

Advancing to step 7:
10 divided by 7 is 1 with a remainder of 3.
Put 1 as the next digit of the answer. 
Result so far: 86342.1
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.

Advancing to step 8:
30 divided by 7 is 4 with a remainder of 2.
The next digit of our result is 4. 
Result so far: 86342.14
Deduct 28 from 30 and we're left 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.

On to step 9:
20 divided by 7 is 2 with a remainder of 6.
Record the quotient 2 as the next digit in the result. 
Result so far: 86342.142
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 10:
The number 7 fits into 60 8 times, leaving a remainder of 4.
The number 8 becomes the next digit in our result. 
Result so far: 86342.1428
Subtract 56 from 60 to 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 11:
If we divide 40 by 7, we get 5 and a remainder of 5.
The next digit of our result is 5. 
Result so far: 86342.14285
Subtracting 35 from 40 leaves us 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.

On to step 12:
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: 86342.142857
Subtract 49 from 50 to 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.

Advancing to step 13:
10 divided by 7 is 1 with a remainder of 3.
Put 1 as the next digit of the answer. 
Result so far: 86342.1428571
Deduct 7 from 10 and we're left 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.

On to step 14:
7 can be fit into 30 4 times, resulting in a remainder of 2.
Write down 4 as next digit of the result. 
Result so far: 86342.14285714
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.

After the division, we end up with 86342.14285714 and a remainder of 2e-09.