We're dividing 387495 by 7 
The aim is to understand the frequency of 7 in 387495.

Step 1:
3 divided by 7 is 0 with a remainder of 3.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 3, we get 3.
Include the next digit (8) from the dividend after 3, then repeat: 38 / 7

Let's proceed to step 2:
7 goes into 38 5 times with a remainder of 3.
Write down 5 as next digit of the result. 
Result so far: 5.0
Subtracting 35 from 38 leaves us with 3.
Grab the next digit (7) from the dividend, add it to 3, then carry on: 37 / 7

Going ahead to step 3:
7 can be fit into 37 5 times, resulting in a remainder of 2.
Use 5 as the next digit of our solution. 
Result so far: 55.0
If we subtract 35 from 37, we get 2.
Grab the next digit (4) from the dividend, add it to 2, then carry on: 24 / 7

Moving on to step 4:
When dividing 24 by 7, we get 3 with a remainder of 3.
Put 3 as the next digit of the answer. 
Result so far: 553.0
Subtracting 21 from 24 leaves us with 3.
Take the next digit (9) from the dividend and append it to 3, then repeat: 39 / 7

Moving on to step 5:
If we divide 39 by 7, we get 5 and a remainder of 4.
The number 5 becomes the next digit in our result. 
Result so far: 5535.0
Deduct 35 from 39 and we're left with 4.
Bring next digit (5) of the dividend behind the 4 and repeat the process: 45 / 7

On to step 6:
45 divided by 7 is 6 with a remainder of 3.
Record the quotient 6 as the next digit in the result. 
Result so far: 55356.0
If we take 42 away from 45, 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.

Let's proceed 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: 55356.4
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.

On to step 8:
7 can be fit into 20 2 times, resulting in a remainder of 6.
Use 2 as the next digit of our solution. 
Result so far: 55356.42
If we take 14 away from 20, we end up 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.

On to step 9:
When dividing 60 by 7, we get 8 with a remainder of 4.
The number 8 becomes the next digit in our result. 
Result so far: 55356.428
Deduct 56 from 60 and we're left with 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Step 10:
40 divided by 7 is 5 with a remainder of 5.
Use 5 as the next digit of our solution. 
Result so far: 55356.4285
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.

Moving on to step 11:
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: 55356.42857
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:
10 divided by 7 is 1 with a remainder of 3.
The next digit of our result is 1. 
Result so far: 55356.428571
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.

Let's proceed to step 13:
7 can be fit into 30 4 times, resulting in a remainder of 2.
The next digit of our result is 4. 
Result so far: 55356.4285714
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.

Moving on to step 14:
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: 55356.42857142
If we subtract 14 from 20, we 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.

The final result is 55356.42857142 with a remainder of 6e-09.