239043 ÷ 51 
The aim is to understand the frequency of 51 in 239043.

Moving on to step 1:
The number 51 fits into 2 0 times, leaving a remainder of 2.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 2, we get 2.
Take the next digit (3) from the dividend and append it to 2, then repeat: 23 / 51

Going ahead to step 2:
23 divided by 51 is 0 with a remainder of 23.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 23 to get 23.
Bring next digit (9) of the dividend behind the 23 and repeat the process: 239 / 51

Let's proceed to step 3:
If we divide 239 by 51, we get 4 and a remainder of 35.
The next digit of our result is 4. 
Result so far: 4.0
Subtracting 204 from 239 leaves us with 35.
Take the next digit (0) from the dividend and append it to 35, then repeat: 350 / 51

Let's proceed to step 4:
The number 51 fits into 350 6 times, leaving a remainder of 44.
Put 6 as the next digit of the answer. 
Result so far: 46.0
Deduct 306 from 350 and we're left with 44.
Bring next digit (4) of the dividend behind the 44 and repeat the process: 444 / 51

On to step 5:
If we divide 444 by 51, we get 8 and a remainder of 36.
Write down 8 as next digit of the result. 
Result so far: 468.0
Subtracting 408 from 444 leaves us with 36.
Grab the next digit (3) from the dividend, add it to 36, then carry on: 363 / 51

Step 6:
51 can be fit into 363 7 times, resulting in a remainder of 6.
Write down 7 as next digit of the result. 
Result so far: 4687.0
If we take 357 away from 363, we end up 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 7:
51 can be fit into 60 1 times, resulting in a remainder of 9.
The next digit of our result is 1. 
Result so far: 4687.1
Deduct 51 from 60 and we're left 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.

Let's proceed to step 8:
51 goes into 90 1 times with a remainder of 39.
Record the quotient 1 as the next digit in the result. 
Result so far: 4687.11
Subtracting 51 from 90 leaves us with 39.
Since there are no more digits in the dividend, we add a zero to the remainder making it 390, and continue the process.

The quotient of the division is 4687.11, and the remainder is 0.039.