871889 divided by 51 
We want to figure out the number of times 871889 can be divided by 51.

Advancing to step 1:
When dividing 8 by 51, we get 0 with a remainder of 8.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 8, we get 8.
Fetch the next digit (7) from the dividend, attach it to 8 and continue: 87 / 51

Advancing to step 2:
51 can be fit into 87 1 times, resulting in a remainder of 36.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
If we subtract 51 from 87, we get 36.
Bring next digit (1) of the dividend behind the 36 and repeat the process: 361 / 51

Advancing to step 3:
361 divided by 51 is 7 with a remainder of 4.
Write down 7 as next digit of the result. 
Result so far: 17.0
Subtract 357 from 361 to get 4.
Fetch the next digit (8) from the dividend, attach it to 4 and continue: 48 / 51

On to step 4:
The number 51 fits into 48 0 times, leaving a remainder of 48.
The next digit of our result is 0. 
Result so far: 170.0
If we subtract 0 from 48, we get 48.
Include the next digit (8) from the dividend after 48, then repeat: 488 / 51

Moving on to step 5:
488 divided by 51 is 9 with a remainder of 29.
The number 9 becomes the next digit in our result. 
Result so far: 1709.0
Subtract 459 from 488 to get 29.
Include the next digit (9) from the dividend after 29, then repeat: 299 / 51

Advancing to step 6:
299 divided by 51 is 5 with a remainder of 44.
Use 5 as the next digit of our solution. 
Result so far: 17095.0
The remainder is 44 after subtracting 255 from 299.
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 7:
51 can be fit into 440 8 times, resulting in a remainder of 32.
Write down 8 as next digit of the result. 
Result so far: 17095.8
The remainder is 32 after subtracting 408 from 440.
Since there are no more digits in the dividend, we add a zero to the remainder making it 320, and continue the process.

Step 8:
51 goes into 320 6 times with a remainder of 14.
The number 6 becomes the next digit in our result. 
Result so far: 17095.86
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.

Moving on to step 9:
If we divide 140 by 51, we get 2 and a remainder of 38.
The number 2 becomes the next digit in our result. 
Result so far: 17095.862
If we take 102 away from 140, we end up with 38.
Since there are no more digits in the dividend, we add a zero to the remainder making it 380, and continue the process.

Let's proceed to step 10:
When dividing 380 by 51, we get 7 with a remainder of 23.
Use 7 as the next digit of our solution. 
Result so far: 17095.8627
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.

Let's proceed to step 11:
51 goes into 230 4 times with a remainder of 26.
Record the quotient 4 as the next digit in the result. 
Result so far: 17095.86274
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.

On to step 12:
The number 51 fits into 260 5 times, leaving a remainder of 5.
The next digit of our result is 5. 
Result so far: 17095.862745
If we subtract 255 from 260, we get 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

Advancing to step 13:
51 goes into 50 0 times with a remainder of 50.
The next digit of our result is 0. 
Result so far: 17095.862745
Subtracting 0 from 50 leaves us with 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

Step 14:
When dividing 500 by 51, we get 9 with a remainder of 41.
Write down 9 as next digit of the result. 
Result so far: 17095.86274509
If we subtract 459 from 500, we get 41.
Since there are no more digits in the dividend, we add a zero to the remainder making it 410, and continue the process.

Our division results in 17095.86274509 with a remaining 4.1e-08.