432960 ÷ 51 
The aim is to understand the frequency of 51 in 432960.

Step 1:
4 divided by 51 is 0 with a remainder of 4.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 4 leaves us with 4.
Bring next digit (3) of the dividend behind the 4 and repeat the process: 43 / 51

On to step 2:
43 divided by 51 is 0 with a remainder of 43.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 43 to get 43.
Append the next digit (2) from the dividend to 43 and continue with: 432 / 51

Let's proceed to step 3:
51 can be fit into 432 8 times, resulting in a remainder of 24.
The number 8 becomes the next digit in our result. 
Result so far: 8.0
The remainder is 24 after subtracting 408 from 432.
Append the next digit (9) from the dividend to 24 and continue with: 249 / 51

Moving on to step 4:
The number 51 fits into 249 4 times, leaving a remainder of 45.
Record the quotient 4 as the next digit in the result. 
Result so far: 84.0
The remainder is 45 after subtracting 204 from 249.
Grab the next digit (6) from the dividend, add it to 45, then carry on: 456 / 51

Advancing to step 5:
456 divided by 51 is 8 with a remainder of 48.
Write down 8 as next digit of the result. 
Result so far: 848.0
Deduct 408 from 456 and we're left with 48.
Include the next digit (0) from the dividend after 48, then repeat: 480 / 51

Going ahead to step 6:
When dividing 480 by 51, we get 9 with a remainder of 21.
The number 9 becomes the next digit in our result. 
Result so far: 8489.0
Subtracting 459 from 480 leaves us with 21.
Since there are no more digits in the dividend, we add a zero to the remainder making it 210, and continue the process.

Let's proceed to step 7:
If we divide 210 by 51, we get 4 and a remainder of 6.
The number 4 becomes the next digit in our result. 
Result so far: 8489.4
Deduct 204 from 210 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.

Going ahead to step 8:
When dividing 60 by 51, we get 1 with a remainder of 9.
Write down 1 as next digit of the result. 
Result so far: 8489.41
Subtracting 51 from 60 leaves us with 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 9:
When dividing 90 by 51, we get 1 with a remainder of 39.
Use 1 as the next digit of our solution. 
Result so far: 8489.411
The remainder is 39 after subtracting 51 from 90.
Since there are no more digits in the dividend, we add a zero to the remainder making it 390, and continue the process.

Our division results in 8489.411 with a remaining 0.0039.