478645 divided by 7 
The aim is to understand the frequency of 7 in 478645.

Let's proceed to step 1:
The number 7 fits into 4 0 times, leaving a remainder of 4.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 4 and we're left with 4.
Bring next digit (7) of the dividend behind the 4 and repeat the process: 47 / 7

Let's proceed to step 2:
When dividing 47 by 7, we get 6 with a remainder of 5.
Use 6 as the next digit of our solution. 
Result so far: 6.0
The remainder is 5 after subtracting 42 from 47.
Take the next digit (8) from the dividend and append it to 5, then repeat: 58 / 7

On to step 3:
If we divide 58 by 7, we get 8 and a remainder of 2.
The number 8 becomes the next digit in our result. 
Result so far: 68.0
Deduct 56 from 58 and we're left with 2.
Fetch the next digit (6) from the dividend, attach it to 2 and continue: 26 / 7

Moving on to step 4:
7 goes into 26 3 times with a remainder of 5.
Write down 3 as next digit of the result. 
Result so far: 683.0
If we take 21 away from 26, we end up with 5.
Grab the next digit (4) from the dividend, add it to 5, then carry on: 54 / 7

Moving on to step 5:
7 goes into 54 7 times with a remainder of 5.
The next digit of our result is 7. 
Result so far: 6837.0
Subtract 49 from 54 to get 5.
Fetch the next digit (5) from the dividend, attach it to 5 and continue: 55 / 7

Going ahead to step 6:
If we divide 55 by 7, we get 7 and a remainder of 6.
Record the quotient 7 as the next digit in the result. 
Result so far: 68377.0
The remainder is 6 after subtracting 49 from 55.
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 7:
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: 68377.8
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 8:
7 goes into 40 5 times with a remainder of 5.
The number 5 becomes the next digit in our result. 
Result so far: 68377.85
Subtract 35 from 40 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.

Let's proceed to step 9:
7 goes into 50 7 times with a remainder of 1.
The next digit of our result is 7. 
Result so far: 68377.857
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.

Let's proceed to step 10:
7 goes into 10 1 times with a remainder of 3.
The number 1 becomes the next digit in our result. 
Result so far: 68377.8571
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.

Let's proceed to step 11:
If we divide 30 by 7, we get 4 and a remainder of 2.
The number 4 becomes the next digit in our result. 
Result so far: 68377.85714
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.

Step 12:
The number 7 fits into 20 2 times, leaving a remainder of 6.
The next digit of our result is 2. 
Result so far: 68377.857142
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.

Let's proceed to step 13:
When dividing 60 by 7, we get 8 with a remainder of 4.
Write down 8 as next digit of the result. 
Result so far: 68377.8571428
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.

Moving on to step 14:
7 goes into 40 5 times with a remainder of 5.
Write down 5 as next digit of the result. 
Result so far: 68377.85714285
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.

The final result is 68377.85714285 with a remainder of 5e-09.