We divide 871955 by 51
The aim is to understand the frequency of 51 in 871955.

Step 1:
The number 51 fits into 8 0 times, leaving a remainder of 8.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 8 and we're left with 8.
Bring next digit (7) of the dividend behind the 8 and repeat the process: 87 / 51

Step 2:
51 goes into 87 1 times with a remainder of 36.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
If we take 51 away from 87, we end up with 36.
Take the next digit (1) from the dividend and append it to 36, then repeat: 361 / 51

Going ahead to step 3:
361 divided by 51 is 7 with a remainder of 4.
The next digit of our result is 7. 
Result so far: 17.0
Deduct 357 from 361 and we're left with 4.
Include the next digit (9) from the dividend after 4, then repeat: 49 / 51

Let's proceed to step 4:
51 goes into 49 0 times with a remainder of 49.
Record the quotient 0 as the next digit in the result. 
Result so far: 170.0
Subtracting 0 from 49 leaves us with 49.
Append the next digit (5) from the dividend to 49 and continue with: 495 / 51

Let's proceed to step 5:
When dividing 495 by 51, we get 9 with a remainder of 36.
The next digit of our result is 9. 
Result so far: 1709.0
If we subtract 459 from 495, we get 36.
Take the next digit (5) from the dividend and append it to 36, then repeat: 365 / 51

Step 6:
51 can be fit into 365 7 times, resulting in a remainder of 8.
Use 7 as the next digit of our solution. 
Result so far: 17097.0
Subtract 357 from 365 to get 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Moving on to step 7:
The number 51 fits into 80 1 times, leaving a remainder of 29.
The number 1 becomes the next digit in our result. 
Result so far: 17097.1
Subtract 51 from 80 to get 29.
Since there are no more digits in the dividend, we add a zero to the remainder making it 290, and continue the process.

On to step 8:
When dividing 290 by 51, we get 5 with a remainder of 35.
Use 5 as the next digit of our solution. 
Result so far: 17097.15
If we subtract 255 from 290, we get 35.
Since there are no more digits in the dividend, we add a zero to the remainder making it 350, and continue the process.

Going ahead to step 9:
If we divide 350 by 51, we get 6 and a remainder of 44.
Put 6 as the next digit of the answer. 
Result so far: 17097.156
Deduct 306 from 350 and we're left with 44.
Since there are no more digits in the dividend, we add a zero to the remainder making it 440, and continue the process.

Going ahead to step 10:
The number 51 fits into 440 8 times, leaving a remainder of 32.
The number 8 becomes the next digit in our result. 
Result so far: 17097.1568
Subtracting 408 from 440 leaves us 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.

Step 11:
51 goes into 320 6 times with a remainder of 14.
Record the quotient 6 as the next digit in the result. 
Result so far: 17097.15686
Subtract 306 from 320 to 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.

Step 12:
140 divided by 51 is 2 with a remainder of 38.
The number 2 becomes the next digit in our result. 
Result so far: 17097.156862
Subtract 102 from 140 to get 38.
Since there are no more digits in the dividend, we add a zero to the remainder making it 380, and continue the process.

Moving on to step 13:
380 divided by 51 is 7 with a remainder of 23.
Use 7 as the next digit of our solution. 
Result so far: 17097.1568627
The remainder is 23 after subtracting 357 from 380.
Since there are no more digits in the dividend, we add a zero to the remainder making it 230, and continue the process.

Step 14:
The number 51 fits into 230 4 times, leaving a remainder of 26.
The number 4 becomes the next digit in our result. 
Result so far: 17097.15686274
Subtracting 204 from 230 leaves us with 26.
Since there are no more digits in the dividend, we add a zero to the remainder making it 260, and continue the process.

Our division results in 17097.15686274 with a remaining 2.6e-08.