We're dividing 263508 by 51 
The aim is to understand the frequency of 51 in 263508.

Step 1:
51 can be fit into 2 0 times, resulting in a remainder of 2.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 2, we end up with 2.
Include the next digit (6) from the dividend after 2, then repeat: 26 / 51

Moving on to step 2:
51 can be fit into 26 0 times, resulting in a remainder of 26.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 26 after subtracting 0 from 26.
Fetch the next digit (3) from the dividend, attach it to 26 and continue: 263 / 51

On to step 3:
263 divided by 51 is 5 with a remainder of 8.
Record the quotient 5 as the next digit in the result. 
Result so far: 5.0
Deduct 255 from 263 and we're left with 8.
Append the next digit (5) from the dividend to 8 and continue with: 85 / 51

On to step 4:
51 goes into 85 1 times with a remainder of 34.
The next digit of our result is 1. 
Result so far: 51.0
Subtracting 51 from 85 leaves us with 34.
Fetch the next digit (0) from the dividend, attach it to 34 and continue: 340 / 51

Advancing to step 5:
51 can be fit into 340 6 times, resulting in a remainder of 34.
The number 6 becomes the next digit in our result. 
Result so far: 516.0
Subtract 306 from 340 to get 34.
Grab the next digit (8) from the dividend, add it to 34, then carry on: 348 / 51

Going ahead to step 6:
When dividing 348 by 51, we get 6 with a remainder of 42.
The next digit of our result is 6. 
Result so far: 5166.0
Subtract 306 from 348 to get 42.
Since there are no more digits in the dividend, we add a zero to the remainder making it 420, and continue the process.

Advancing to step 7:
51 can be fit into 420 8 times, resulting in a remainder of 12.
Use 8 as the next digit of our solution. 
Result so far: 5166.8
If we take 408 away from 420, we end up 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.

Step 8:
The number 51 fits into 120 2 times, leaving a remainder of 18.
The number 2 becomes the next digit in our result. 
Result so far: 5166.82
Subtracting 102 from 120 leaves us with 18.
Since there are no more digits in the dividend, we add a zero to the remainder making it 180, and continue the process.

Advancing to step 9:
180 divided by 51 is 3 with a remainder of 27.
Use 3 as the next digit of our solution. 
Result so far: 5166.823
Subtract 153 from 180 to get 27.
Since there are no more digits in the dividend, we add a zero to the remainder making it 270, and continue the process.

Moving on to step 10:
51 goes into 270 5 times with a remainder of 15.
Put 5 as the next digit of the answer. 
Result so far: 5166.8235
Subtract 255 from 270 to get 15.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

Going ahead to step 11:
If we divide 150 by 51, we get 2 and a remainder of 48.
Use 2 as the next digit of our solution. 
Result so far: 5166.82352
Subtracting 102 from 150 leaves us with 48.
Since there are no more digits in the dividend, we add a zero to the remainder making it 480, and continue the process.

Moving on to step 12:
When dividing 480 by 51, we get 9 with a remainder of 21.
Use 9 as the next digit of our solution. 
Result so far: 5166.823529
The remainder is 21 after subtracting 459 from 480.
Since there are no more digits in the dividend, we add a zero to the remainder making it 210, and continue the process.

On to step 13:
51 goes into 210 4 times with a remainder of 6.
Record the quotient 4 as the next digit in the result. 
Result so far: 5166.8235294
Subtract 204 from 210 to get 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Let's proceed to step 14:
51 can be fit into 60 1 times, resulting in a remainder of 9.
Put 1 as the next digit of the answer. 
Result so far: 5166.82352941
The remainder is 9 after subtracting 51 from 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 90, and continue the process.

The quotient of the division is 5166.82352941, and the remainder is 9e-09.