628085 divided by 51 
The aim is to understand the frequency of 51 in 628085.

Going ahead to step 1:
6 divided by 51 is 0 with a remainder of 6.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 6, we end up with 6.
Fetch the next digit (2) from the dividend, attach it to 6 and continue: 62 / 51

Moving on to step 2:
51 goes into 62 1 times with a remainder of 11.
The next digit of our result is 1. 
Result so far: 1.0
Subtracting 51 from 62 leaves us with 11.
Take the next digit (8) from the dividend and append it to 11, then repeat: 118 / 51

Advancing to step 3:
When dividing 118 by 51, we get 2 with a remainder of 16.
Use 2 as the next digit of our solution. 
Result so far: 12.0
The remainder is 16 after subtracting 102 from 118.
Fetch the next digit (0) from the dividend, attach it to 16 and continue: 160 / 51

On to step 4:
160 divided by 51 is 3 with a remainder of 7.
Record the quotient 3 as the next digit in the result. 
Result so far: 123.0
Subtract 153 from 160 to get 7.
Take the next digit (8) from the dividend and append it to 7, then repeat: 78 / 51

Going ahead to step 5:
If we divide 78 by 51, we get 1 and a remainder of 27.
Write down 1 as next digit of the result. 
Result so far: 1231.0
Subtracting 51 from 78 leaves us with 27.
Include the next digit (5) from the dividend after 27, then repeat: 275 / 51

On to step 6:
The number 51 fits into 275 5 times, leaving a remainder of 20.
Put 5 as the next digit of the answer. 
Result so far: 12315.0
If we subtract 255 from 275, we get 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Moving on to step 7:
If we divide 200 by 51, we get 3 and a remainder of 47.
The number 3 becomes the next digit in our result. 
Result so far: 12315.3
Subtracting 153 from 200 leaves us with 47.
Since there are no more digits in the dividend, we add a zero to the remainder making it 470, and continue the process.

Step 8:
470 divided by 51 is 9 with a remainder of 11.
Write down 9 as next digit of the result. 
Result so far: 12315.39
If we subtract 459 from 470, we get 11.
Since there are no more digits in the dividend, we add a zero to the remainder making it 110, and continue the process.

Going ahead to step 9:
110 divided by 51 is 2 with a remainder of 8.
The number 2 becomes the next digit in our result. 
Result so far: 12315.392
If we take 102 away from 110, we end up with 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Let's proceed to step 10:
51 goes into 80 1 times with a remainder of 29.
Use 1 as the next digit of our solution. 
Result so far: 12315.3921
Deduct 51 from 80 and we're left with 29.
Since there are no more digits in the dividend, we add a zero to the remainder making it 290, and continue the process.

Moving on to step 11:
When dividing 290 by 51, we get 5 with a remainder of 35.
Record the quotient 5 as the next digit in the result. 
Result so far: 12315.39215
Deduct 255 from 290 and we're left with 35.
Since there are no more digits in the dividend, we add a zero to the remainder making it 350, and continue the process.

Advancing to step 12:
The number 51 fits into 350 6 times, leaving a remainder of 44.
Record the quotient 6 as the next digit in the result. 
Result so far: 12315.392156
The remainder is 44 after subtracting 306 from 350.
Since there are no more digits in the dividend, we add a zero to the remainder making it 440, and continue the process.

On to step 13:
51 goes into 440 8 times with a remainder of 32.
Put 8 as the next digit of the answer. 
Result so far: 12315.3921568
Deduct 408 from 440 and we're left with 32.
Since there are no more digits in the dividend, we add a zero to the remainder making it 320, and continue the process.

Moving on to step 14:
The number 51 fits into 320 6 times, leaving a remainder of 14.
Use 6 as the next digit of our solution. 
Result so far: 12315.39215686
If we subtract 306 from 320, we get 14.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

Our division results in 12315.39215686 with a remaining 1.4e-08.