389447 ÷ 7 
The aim is to understand the frequency of 7 in 389447.

Let's proceed to step 1:
If we divide 3 by 7, we get 0 and a remainder of 3.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 3 and we're left with 3.
Take the next digit (8) from the dividend and append it to 3, then repeat: 38 / 7

Moving on to step 2:
7 goes into 38 5 times with a remainder of 3.
The number 5 becomes the next digit in our result. 
Result so far: 5.0
Subtract 35 from 38 to get 3.
Append the next digit (9) from the dividend to 3 and continue with: 39 / 7

Moving on to step 3:
7 can be fit into 39 5 times, resulting in a remainder of 4.
The next digit of our result is 5. 
Result so far: 55.0
Deduct 35 from 39 and we're left with 4.
Include the next digit (4) from the dividend after 4, then repeat: 44 / 7

Let's proceed to step 4:
The number 7 fits into 44 6 times, leaving a remainder of 2.
The number 6 becomes the next digit in our result. 
Result so far: 556.0
If we subtract 42 from 44, we get 2.
Grab the next digit (4) from the dividend, add it to 2, then carry on: 24 / 7

Moving on to step 5:
7 goes into 24 3 times with a remainder of 3.
Record the quotient 3 as the next digit in the result. 
Result so far: 5563.0
Subtracting 21 from 24 leaves us with 3.
Include the next digit (7) from the dividend after 3, then repeat: 37 / 7

Advancing to step 6:
If we divide 37 by 7, we get 5 and a remainder of 2.
Record the quotient 5 as the next digit in the result. 
Result so far: 55635.0
If we subtract 35 from 37, we 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.

On to step 7:
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: 55635.2
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 8:
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: 55635.28
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.

Moving on to step 9:
7 goes into 40 5 times with a remainder of 5.
Put 5 as the next digit of the answer. 
Result so far: 55635.285
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 10:
7 goes into 50 7 times with a remainder of 1.
The number 7 becomes the next digit in our result. 
Result so far: 55635.2857
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.

Step 11:
7 goes into 10 1 times with a remainder of 3.
Write down 1 as next digit of the result. 
Result so far: 55635.28571
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.

Going ahead to step 12:
7 can be fit into 30 4 times, resulting in a remainder of 2.
Use 4 as the next digit of our solution. 
Result so far: 55635.285714
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.

Advancing to step 13:
7 can be fit into 20 2 times, resulting in a remainder of 6.
The number 2 becomes the next digit in our result. 
Result so far: 55635.2857142
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.

Advancing to step 14:
When dividing 60 by 7, we get 8 with a remainder of 4.
The next digit of our result is 8. 
Result so far: 55635.28571428
Subtracting 56 from 60 leaves us 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.

In conclusion, the division gives 55635.28571428 with a balance of 4e-09.