We look at the division of 51562880 by 851 
The aim is to understand the frequency of 851 in 51562880.

On to step 1:
5 divided by 851 is 0 with a remainder of 5.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 5 after subtracting 0 from 5.
Append the next digit (1) from the dividend to 5 and continue with: 51 / 851

Let's proceed to step 2:
51 divided by 851 is 0 with a remainder of 51.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 51 and we're left with 51.
Bring next digit (5) of the dividend behind the 51 and repeat the process: 515 / 851

On to step 3:
When dividing 515 by 851, we get 0 with a remainder of 515.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 515 to get 515.
Include the next digit (6) from the dividend after 515, then repeat: 5156 / 851

On to step 4:
5156 divided by 851 is 6 with a remainder of 50.
Record the quotient 6 as the next digit in the result. 
Result so far: 6.0
If we take 5106 away from 5156, we end up with 50.
Grab the next digit (2) from the dividend, add it to 50, then carry on: 502 / 851

Let's proceed to step 5:
When dividing 502 by 851, we get 0 with a remainder of 502.
Use 0 as the next digit of our solution. 
Result so far: 60.0
Subtracting 0 from 502 leaves us with 502.
Bring next digit (8) of the dividend behind the 502 and repeat the process: 5028 / 851

Step 6:
851 goes into 5028 5 times with a remainder of 773.
The next digit of our result is 5. 
Result so far: 605.0
The remainder is 773 after subtracting 4255 from 5028.
Bring next digit (8) of the dividend behind the 773 and repeat the process: 7738 / 851

Moving on to step 7:
7738 divided by 851 is 9 with a remainder of 79.
The number 9 becomes the next digit in our result. 
Result so far: 6059.0
The remainder is 79 after subtracting 7659 from 7738.
Take the next digit (0) from the dividend and append it to 79, then repeat: 790 / 851

Let's proceed to step 8:
The number 851 fits into 790 0 times, leaving a remainder of 790.
Write down 0 as next digit of the result. 
Result so far: 60590.0
Deduct 0 from 790 and we're left with 790.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7900, and continue the process.

Going ahead to step 9:
The number 851 fits into 7900 9 times, leaving a remainder of 241.
Write down 9 as next digit of the result. 
Result so far: 60590.9
If we take 7659 away from 7900, we end up with 241.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2410, and continue the process.

Step 10:
When dividing 2410 by 851, we get 2 with a remainder of 708.
Put 2 as the next digit of the answer. 
Result so far: 60590.92
The remainder is 708 after subtracting 1702 from 2410.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7080, and continue the process.

Step 11:
851 goes into 7080 8 times with a remainder of 272.
Record the quotient 8 as the next digit in the result. 
Result so far: 60590.928
The remainder is 272 after subtracting 6808 from 7080.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2720, and continue the process.

Moving on to step 12:
851 goes into 2720 3 times with a remainder of 167.
The next digit of our result is 3. 
Result so far: 60590.9283
The remainder is 167 after subtracting 2553 from 2720.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1670, and continue the process.

On to step 13:
851 goes into 1670 1 times with a remainder of 819.
Use 1 as the next digit of our solution. 
Result so far: 60590.92831
Subtract 851 from 1670 to get 819.
Since there are no more digits in the dividend, we add a zero to the remainder making it 8190, and continue the process.

Moving on to step 14:
8190 divided by 851 is 9 with a remainder of 531.
Use 9 as the next digit of our solution. 
Result so far: 60590.928319
Subtracting 7659 from 8190 leaves us with 531.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5310, and continue the process.

Step 15:
851 goes into 5310 6 times with a remainder of 204.
The next digit of our result is 6. 
Result so far: 60590.9283196
If we subtract 5106 from 5310, we get 204.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2040, and continue the process.

Moving on to step 16:
851 goes into 2040 2 times with a remainder of 338.
Record the quotient 2 as the next digit in the result. 
Result so far: 60590.92831962
The remainder is 338 after subtracting 1702 from 2040.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3380, and continue the process.

Our division results in 60590.92831962 with a remaining 3.38e-07.