567603 ÷ 51 
The aim is to understand the frequency of 51 in 567603.

On to step 1:
5 divided by 51 is 0 with a remainder of 5.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 5, we end up with 5.
Take the next digit (6) from the dividend and append it to 5, then repeat: 56 / 51

Going ahead to step 2:
If we divide 56 by 51, we get 1 and a remainder of 5.
Write down 1 as next digit of the result. 
Result so far: 1.0
Deduct 51 from 56 and we're left with 5.
Include the next digit (7) from the dividend after 5, then repeat: 57 / 51

On to step 3:
51 can be fit into 57 1 times, resulting in a remainder of 6.
Put 1 as the next digit of the answer. 
Result so far: 11.0
Subtracting 51 from 57 leaves us with 6.
Take the next digit (6) from the dividend and append it to 6, then repeat: 66 / 51

Step 4:
When dividing 66 by 51, we get 1 with a remainder of 15.
Record the quotient 1 as the next digit in the result. 
Result so far: 111.0
Subtracting 51 from 66 leaves us with 15.
Fetch the next digit (0) from the dividend, attach it to 15 and continue: 150 / 51

Step 5:
51 can be fit into 150 2 times, resulting in a remainder of 48.
Put 2 as the next digit of the answer. 
Result so far: 1112.0
The remainder is 48 after subtracting 102 from 150.
Append the next digit (3) from the dividend to 48 and continue with: 483 / 51

Advancing to step 6:
51 can be fit into 483 9 times, resulting in a remainder of 24.
Write down 9 as next digit of the result. 
Result so far: 11129.0
If we take 459 away from 483, we end up with 24.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

Let's proceed to step 7:
51 can be fit into 240 4 times, resulting in a remainder of 36.
The next digit of our result is 4. 
Result so far: 11129.4
Subtracting 204 from 240 leaves us with 36.
Since there are no more digits in the dividend, we add a zero to the remainder making it 360, and continue the process.

Let's proceed to step 8:
If we divide 360 by 51, we get 7 and a remainder of 3.
Write down 7 as next digit of the result. 
Result so far: 11129.47
If we take 357 away from 360, 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.

Moving on to step 9:
51 goes into 30 0 times with a remainder of 30.
The next digit of our result is 0. 
Result so far: 11129.47
If we take 0 away from 30, we end up with 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Step 10:
300 divided by 51 is 5 with a remainder of 45.
The next digit of our result is 5. 
Result so far: 11129.4705
If we take 255 away from 300, we end up with 45.
Since there are no more digits in the dividend, we add a zero to the remainder making it 450, and continue the process.

On to step 11:
51 can be fit into 450 8 times, resulting in a remainder of 42.
Put 8 as the next digit of the answer. 
Result so far: 11129.47058
Subtracting 408 from 450 leaves us with 42.
Since there are no more digits in the dividend, we add a zero to the remainder making it 420, and continue the process.

Step 12:
420 divided by 51 is 8 with a remainder of 12.
Use 8 as the next digit of our solution. 
Result so far: 11129.470588
The remainder is 12 after subtracting 408 from 420.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

The final outcome is 11129.470588, with a leftover of 1.2e-06.