51879387 divided by 257 
We want to figure out the number of times 51879387 can be divided by 257.

On to step 1:
If we divide 5 by 257, we get 0 and a remainder of 5.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 5, we get 5.
Fetch the next digit (1) from the dividend, attach it to 5 and continue: 51 / 257

Step 2:
When dividing 51 by 257, we get 0 with a remainder of 51.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 51 to get 51.
Grab the next digit (8) from the dividend, add it to 51, then carry on: 518 / 257

On to step 3:
257 can be fit into 518 2 times, resulting in a remainder of 4.
The number 2 becomes the next digit in our result. 
Result so far: 2.0
Subtract 514 from 518 to get 4.
Bring next digit (7) of the dividend behind the 4 and repeat the process: 47 / 257

Moving on to step 4:
If we divide 47 by 257, we get 0 and a remainder of 47.
The next digit of our result is 0. 
Result so far: 20.0
The remainder is 47 after subtracting 0 from 47.
Fetch the next digit (9) from the dividend, attach it to 47 and continue: 479 / 257

Going ahead to step 5:
The number 257 fits into 479 1 times, leaving a remainder of 222.
Record the quotient 1 as the next digit in the result. 
Result so far: 201.0
Subtract 257 from 479 to get 222.
Include the next digit (3) from the dividend after 222, then repeat: 2223 / 257

Moving on to step 6:
257 can be fit into 2223 8 times, resulting in a remainder of 167.
Put 8 as the next digit of the answer. 
Result so far: 2018.0
Subtracting 2056 from 2223 leaves us with 167.
Bring next digit (8) of the dividend behind the 167 and repeat the process: 1678 / 257

Step 7:
257 can be fit into 1678 6 times, resulting in a remainder of 136.
Record the quotient 6 as the next digit in the result. 
Result so far: 20186.0
If we take 1542 away from 1678, we end up with 136.
Take the next digit (7) from the dividend and append it to 136, then repeat: 1367 / 257

Moving on to step 8:
The number 257 fits into 1367 5 times, leaving a remainder of 82.
Record the quotient 5 as the next digit in the result. 
Result so far: 201865.0
If we subtract 1285 from 1367, we get 82.
Since there are no more digits in the dividend, we add a zero to the remainder making it 820, and continue the process.

Moving on to step 9:
257 goes into 820 3 times with a remainder of 49.
Put 3 as the next digit of the answer. 
Result so far: 201865.3
The remainder is 49 after subtracting 771 from 820.
Since there are no more digits in the dividend, we add a zero to the remainder making it 490, and continue the process.

Step 10:
When dividing 490 by 257, we get 1 with a remainder of 233.
The next digit of our result is 1. 
Result so far: 201865.31
The remainder is 233 after subtracting 257 from 490.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2330, and continue the process.

Going ahead to step 11:
When dividing 2330 by 257, we get 9 with a remainder of 17.
Put 9 as the next digit of the answer. 
Result so far: 201865.319
The remainder is 17 after subtracting 2313 from 2330.
Since there are no more digits in the dividend, we add a zero to the remainder making it 170, and continue the process.

Step 12:
When dividing 170 by 257, we get 0 with a remainder of 170.
Record the quotient 0 as the next digit in the result. 
Result so far: 201865.319
Subtracting 0 from 170 leaves us with 170.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1700, and continue the process.

Let's proceed to step 13:
1700 divided by 257 is 6 with a remainder of 158.
The next digit of our result is 6. 
Result so far: 201865.31906
If we take 1542 away from 1700, we end up with 158.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1580, and continue the process.

Moving on to step 14:
257 goes into 1580 6 times with a remainder of 38.
Write down 6 as next digit of the result. 
Result so far: 201865.319066
Subtracting 1542 from 1580 leaves us 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.

After the division, we end up with 201865.319066 and a remainder of 3.8e-06.