We look at the division of 413556 by 7 
The aim is to understand the frequency of 7 in 413556.

Moving on to step 1:
7 can be fit into 4 0 times, resulting in a remainder of 4.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 4 to get 4.
Grab the next digit (1) from the dividend, add it to 4, then carry on: 41 / 7

Moving on to step 2:
7 can be fit into 41 5 times, resulting in a remainder of 6.
Write down 5 as next digit of the result. 
Result so far: 5.0
The remainder is 6 after subtracting 35 from 41.
Grab the next digit (3) from the dividend, add it to 6, then carry on: 63 / 7

Going ahead to step 3:
If we divide 63 by 7, we get 9 and a remainder of 0.
Use 9 as the next digit of our solution. 
Result so far: 59.0
Subtract 63 from 63 to get 0.
Append the next digit (5) from the dividend to 0 and continue with: 5 / 7

Let's proceed to step 4:
When dividing 5 by 7, we get 0 with a remainder of 5.
Put 0 as the next digit of the answer. 
Result so far: 590.0
The remainder is 5 after subtracting 0 from 5.
Append the next digit (5) from the dividend to 5 and continue with: 55 / 7

On to step 5:
When dividing 55 by 7, we get 7 with a remainder of 6.
Use 7 as the next digit of our solution. 
Result so far: 5907.0
If we subtract 49 from 55, we get 6.
Bring next digit (6) of the dividend behind the 6 and repeat the process: 66 / 7

Step 6:
When dividing 66 by 7, we get 9 with a remainder of 3.
The number 9 becomes the next digit in our result. 
Result so far: 59079.0
Deduct 63 from 66 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.

Let's proceed to step 7:
If we divide 30 by 7, we get 4 and a remainder of 2.
Put 4 as the next digit of the answer. 
Result so far: 59079.4
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.

Let's proceed to step 8:
7 can be fit into 20 2 times, resulting in a remainder of 6.
Put 2 as the next digit of the answer. 
Result so far: 59079.42
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.

Advancing to step 9:
60 divided by 7 is 8 with a remainder of 4.
Use 8 as the next digit of our solution. 
Result so far: 59079.428
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 10:
When dividing 40 by 7, we get 5 with a remainder of 5.
Record the quotient 5 as the next digit in the result. 
Result so far: 59079.4285
Deduct 35 from 40 and we're left 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 11:
When dividing 50 by 7, we get 7 with a remainder of 1.
The next digit of our result is 7. 
Result so far: 59079.42857
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.

Going ahead to step 12:
When dividing 10 by 7, we get 1 with a remainder of 3.
Use 1 as the next digit of our solution. 
Result so far: 59079.428571
If we subtract 7 from 10, we 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.

Advancing to step 13:
When dividing 30 by 7, we get 4 with a remainder of 2.
The number 4 becomes the next digit in our result. 
Result so far: 59079.4285714
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.

Advancing to step 14:
7 can be fit into 20 2 times, resulting in a remainder of 6.
Put 2 as the next digit of the answer. 
Result so far: 59079.42857142
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.

The final result is 59079.42857142 with a remainder of 6e-09.