We look at the division of 77923 by 51 
The aim is to understand the frequency of 51 in 77923.

Going ahead to step 1:
51 can be fit into 7 0 times, resulting in a remainder of 7.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we take 0 away from 7, we end up with 7.
Include the next digit (7) from the dividend after 7, then repeat: 77 / 51

Going ahead to step 2:
51 can be fit into 77 1 times, resulting in a remainder of 26.
Write down 1 as next digit of the result. 
Result so far: 1.0
Deduct 51 from 77 and we're left with 26.
Include the next digit (9) from the dividend after 26, then repeat: 269 / 51

Step 3:
51 goes into 269 5 times with a remainder of 14.
The number 5 becomes the next digit in our result. 
Result so far: 15.0
Subtracting 255 from 269 leaves us with 14.
Fetch the next digit (2) from the dividend, attach it to 14 and continue: 142 / 51

Going ahead to step 4:
The number 51 fits into 142 2 times, leaving a remainder of 40.
Put 2 as the next digit of the answer. 
Result so far: 152.0
The remainder is 40 after subtracting 102 from 142.
Grab the next digit (3) from the dividend, add it to 40, then carry on: 403 / 51

Going ahead to step 5:
403 divided by 51 is 7 with a remainder of 46.
The next digit of our result is 7. 
Result so far: 1527.0
If we subtract 357 from 403, we get 46.
Since there are no more digits in the dividend, we add a zero to the remainder making it 460, and continue the process.

On to step 6:
51 goes into 460 9 times with a remainder of 1.
Write down 9 as next digit of the result. 
Result so far: 1527.9
If we take 459 away from 460, we end up with 1.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

Advancing to step 7:
The number 51 fits into 10 0 times, leaving a remainder of 10.
The number 0 becomes the next digit in our result. 
Result so far: 1527.9
The remainder is 10 after subtracting 0 from 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 8:
51 goes into 100 1 times with a remainder of 49.
Write down 1 as next digit of the result. 
Result so far: 1527.901
If we subtract 51 from 100, we get 49.
Since there are no more digits in the dividend, we add a zero to the remainder making it 490, and continue the process.

Step 9:
If we divide 490 by 51, we get 9 and a remainder of 31.
Put 9 as the next digit of the answer. 
Result so far: 1527.9019
The remainder is 31 after subtracting 459 from 490.
Since there are no more digits in the dividend, we add a zero to the remainder making it 310, and continue the process.

On to step 10:
When dividing 310 by 51, we get 6 with a remainder of 4.
The next digit of our result is 6. 
Result so far: 1527.90196
If we subtract 306 from 310, we get 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Step 11:
40 divided by 51 is 0 with a remainder of 40.
Put 0 as the next digit of the answer. 
Result so far: 1527.90196
Deduct 0 from 40 and we're left with 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Let's proceed to step 12:
400 divided by 51 is 7 with a remainder of 43.
Use 7 as the next digit of our solution. 
Result so far: 1527.9019607
The remainder is 43 after subtracting 357 from 400.
Since there are no more digits in the dividend, we add a zero to the remainder making it 430, and continue the process.

Advancing to step 13:
430 divided by 51 is 8 with a remainder of 22.
Put 8 as the next digit of the answer. 
Result so far: 1527.90196078
Deduct 408 from 430 and we're left with 22.
Since there are no more digits in the dividend, we add a zero to the remainder making it 220, and continue the process.

Our division results in 1527.90196078 with a remaining 2.2e-08.