Let's divide 689508 by 51
The aim is to understand the frequency of 51 in 689508.

Going ahead to step 1:
6 divided by 51 is 0 with a remainder of 6.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
The remainder is 6 after subtracting 0 from 6.
Fetch the next digit (8) from the dividend, attach it to 6 and continue: 68 / 51

On to step 2:
51 can be fit into 68 1 times, resulting in a remainder of 17.
The next digit of our result is 1. 
Result so far: 1.0
Subtract 51 from 68 to get 17.
Bring next digit (9) of the dividend behind the 17 and repeat the process: 179 / 51

Advancing to step 3:
The number 51 fits into 179 3 times, leaving a remainder of 26.
The number 3 becomes the next digit in our result. 
Result so far: 13.0
The remainder is 26 after subtracting 153 from 179.
Take the next digit (5) from the dividend and append it to 26, then repeat: 265 / 51

Advancing to step 4:
When dividing 265 by 51, we get 5 with a remainder of 10.
Put 5 as the next digit of the answer. 
Result so far: 135.0
Deduct 255 from 265 and we're left with 10.
Grab the next digit (0) from the dividend, add it to 10, then carry on: 100 / 51

Let's proceed to step 5:
When dividing 100 by 51, we get 1 with a remainder of 49.
Use 1 as the next digit of our solution. 
Result so far: 1351.0
Subtracting 51 from 100 leaves us with 49.
Append the next digit (8) from the dividend to 49 and continue with: 498 / 51

Advancing to step 6:
51 can be fit into 498 9 times, resulting in a remainder of 39.
The next digit of our result is 9. 
Result so far: 13519.0
Subtracting 459 from 498 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.

Going ahead to step 7:
51 goes into 390 7 times with a remainder of 33.
Write down 7 as next digit of the result. 
Result so far: 13519.7
The remainder is 33 after subtracting 357 from 390.
Since there are no more digits in the dividend, we add a zero to the remainder making it 330, and continue the process.

Advancing to step 8:
The number 51 fits into 330 6 times, leaving a remainder of 24.
Use 6 as the next digit of our solution. 
Result so far: 13519.76
If we take 306 away from 330, 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.

Advancing to step 9:
240 divided by 51 is 4 with a remainder of 36.
Record the quotient 4 as the next digit in the result. 
Result so far: 13519.764
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.

Step 10:
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: 13519.7647
Subtracting 357 from 360 leaves us 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.

Advancing to step 11:
30 divided by 51 is 0 with a remainder of 30.
Record the quotient 0 as the next digit in the result. 
Result so far: 13519.7647
Subtract 0 from 30 to get 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

On to step 12:
If we divide 300 by 51, we get 5 and a remainder of 45.
Record the quotient 5 as the next digit in the result. 
Result so far: 13519.764705
If we subtract 255 from 300, we get 45.
Since there are no more digits in the dividend, we add a zero to the remainder making it 450, and continue the process.

Let's proceed to step 13:
450 divided by 51 is 8 with a remainder of 42.
Put 8 as the next digit of the answer. 
Result so far: 13519.7647058
If we take 408 away from 450, we end up 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.

Going ahead to step 14:
If we divide 420 by 51, we get 8 and a remainder of 12.
Write down 8 as next digit of the result. 
Result so far: 13519.76470588
Subtracting 408 from 420 leaves us 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.

After the division, we end up with 13519.76470588 and a remainder of 1.2e-08.