479788 ÷ 13 
The aim is to understand the frequency of 13 in 479788.

Step 1:
When dividing 4 by 13, we get 0 with a remainder of 4.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
The remainder is 4 after subtracting 0 from 4.
Bring next digit (7) of the dividend behind the 4 and repeat the process: 47 / 13

Going ahead to step 2:
13 goes into 47 3 times with a remainder of 8.
Put 3 as the next digit of the answer. 
Result so far: 3.0
If we take 39 away from 47, we end up with 8.
Take the next digit (9) from the dividend and append it to 8, then repeat: 89 / 13

Step 3:
13 goes into 89 6 times with a remainder of 11.
Use 6 as the next digit of our solution. 
Result so far: 36.0
Subtract 78 from 89 to get 11.
Grab the next digit (7) from the dividend, add it to 11, then carry on: 117 / 13

Moving on to step 4:
13 can be fit into 117 9 times, resulting in a remainder of 0.
Write down 9 as next digit of the result. 
Result so far: 369.0
Deduct 117 from 117 and we're left with 0.
Take the next digit (8) from the dividend and append it to 0, then repeat: 8 / 13

Moving on to step 5:
13 goes into 8 0 times with a remainder of 8.
Record the quotient 0 as the next digit in the result. 
Result so far: 3690.0
If we take 0 away from 8, we end up with 8.
Bring next digit (8) of the dividend behind the 8 and repeat the process: 88 / 13

Going ahead to step 6:
88 divided by 13 is 6 with a remainder of 10.
The next digit of our result is 6. 
Result so far: 36906.0
If we subtract 78 from 88, we get 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Moving on to step 7:
The number 13 fits into 100 7 times, leaving a remainder of 9.
Put 7 as the next digit of the answer. 
Result so far: 36906.7
If we subtract 91 from 100, we get 9.
Since there are no more digits in the dividend, we add a zero to the remainder making it 90, and continue the process.

Going ahead to step 8:
When dividing 90 by 13, we get 6 with a remainder of 12.
Put 6 as the next digit of the answer. 
Result so far: 36906.76
Deduct 78 from 90 and we're left with 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

Going ahead to step 9:
If we divide 120 by 13, we get 9 and a remainder of 3.
Write down 9 as next digit of the result. 
Result so far: 36906.769
If we subtract 117 from 120, 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 10:
If we divide 30 by 13, we get 2 and a remainder of 4.
Use 2 as the next digit of our solution. 
Result so far: 36906.7692
If we take 26 away from 30, 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.

Advancing to step 11:
13 can be fit into 40 3 times, resulting in a remainder of 1.
The number 3 becomes the next digit in our result. 
Result so far: 36906.76923
Subtract 39 from 40 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 12:
The number 13 fits into 10 0 times, leaving a remainder of 10.
Record the quotient 0 as the next digit in the result. 
Result so far: 36906.76923
Subtracting 0 from 10 leaves us with 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

On to step 13:
100 divided by 13 is 7 with a remainder of 9.
The next digit of our result is 7. 
Result so far: 36906.7692307
Subtract 91 from 100 to get 9.
Since there are no more digits in the dividend, we add a zero to the remainder making it 90, and continue the process.

On to step 14:
13 can be fit into 90 6 times, resulting in a remainder of 12.
The next digit of our result is 6. 
Result so far: 36906.76923076
Subtracting 78 from 90 leaves us with 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

The quotient of the division is 36906.76923076, and the remainder is 1.2e-08.