621304 divided by 7 
The aim is to understand the frequency of 7 in 621304.

Moving on to step 1:
7 goes into 6 0 times with a remainder of 6.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 6 after subtracting 0 from 6.
Grab the next digit (2) from the dividend, add it to 6, then carry on: 62 / 7

Advancing to step 2:
7 can be fit into 62 8 times, resulting in a remainder of 6.
Write down 8 as next digit of the result. 
Result so far: 8.0
If we subtract 56 from 62, we get 6.
Fetch the next digit (1) from the dividend, attach it to 6 and continue: 61 / 7

Let's proceed to step 3:
When dividing 61 by 7, we get 8 with a remainder of 5.
The next digit of our result is 8. 
Result so far: 88.0
If we subtract 56 from 61, we get 5.
Take the next digit (3) from the dividend and append it to 5, then repeat: 53 / 7

Let's proceed to step 4:
7 can be fit into 53 7 times, resulting in a remainder of 4.
Use 7 as the next digit of our solution. 
Result so far: 887.0
Subtracting 49 from 53 leaves us with 4.
Fetch the next digit (0) from the dividend, attach it to 4 and continue: 40 / 7

Step 5:
40 divided by 7 is 5 with a remainder of 5.
The number 5 becomes the next digit in our result. 
Result so far: 8875.0
If we subtract 35 from 40, we get 5.
Grab the next digit (4) from the dividend, add it to 5, then carry on: 54 / 7

Moving on to step 6:
The number 7 fits into 54 7 times, leaving a remainder of 5.
Write down 7 as next digit of the result. 
Result so far: 88757.0
Subtract 49 from 54 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:
7 goes into 50 7 times with a remainder of 1.
Write down 7 as next digit of the result. 
Result so far: 88757.7
If we subtract 49 from 50, we 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.

Moving on to step 8:
7 can be fit into 10 1 times, resulting in a remainder of 3.
The number 1 becomes the next digit in our result. 
Result so far: 88757.71
Subtracting 7 from 10 leaves us 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 9:
If we divide 30 by 7, we get 4 and a remainder of 2.
Record the quotient 4 as the next digit in the result. 
Result so far: 88757.714
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.

Moving on to step 10:
7 goes into 20 2 times with a remainder of 6.
Write down 2 as next digit of the result. 
Result so far: 88757.7142
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.

Step 11:
If we divide 60 by 7, we get 8 and a remainder of 4.
Record the quotient 8 as the next digit in the result. 
Result so far: 88757.71428
If we take 56 away from 60, we end up 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.

Going ahead to step 12:
The number 7 fits into 40 5 times, leaving a remainder of 5.
The next digit of our result is 5. 
Result so far: 88757.714285
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.

On to step 13:
7 goes into 50 7 times with a remainder of 1.
Put 7 as the next digit of the answer. 
Result so far: 88757.7142857
Subtracting 49 from 50 leaves us 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.

Advancing to step 14:
If we divide 10 by 7, we get 1 and a remainder of 3.
Write down 1 as next digit of the result. 
Result so far: 88757.71428571
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.

Our division results in 88757.71428571 with a remaining 3e-09.