Let's divide 258749 by 51
Let's see how many times 51 fits into 258749.

On to step 1:
The number 51 fits into 2 0 times, leaving a remainder of 2.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 2 and we're left with 2.
Fetch the next digit (5) from the dividend, attach it to 2 and continue: 25 / 51

Going ahead to step 2:
If we divide 25 by 51, we get 0 and a remainder of 25.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
The remainder is 25 after subtracting 0 from 25.
Fetch the next digit (8) from the dividend, attach it to 25 and continue: 258 / 51

Moving on to step 3:
The number 51 fits into 258 5 times, leaving a remainder of 3.
The next digit of our result is 5. 
Result so far: 5.0
If we take 255 away from 258, we end up with 3.
Append the next digit (7) from the dividend to 3 and continue with: 37 / 51

On to step 4:
51 goes into 37 0 times with a remainder of 37.
Put 0 as the next digit of the answer. 
Result so far: 50.0
Deduct 0 from 37 and we're left with 37.
Grab the next digit (4) from the dividend, add it to 37, then carry on: 374 / 51

Moving on to step 5:
When dividing 374 by 51, we get 7 with a remainder of 17.
The number 7 becomes the next digit in our result. 
Result so far: 507.0
The remainder is 17 after subtracting 357 from 374.
Append the next digit (9) from the dividend to 17 and continue with: 179 / 51

Moving on to step 6:
51 goes into 179 3 times with a remainder of 26.
Record the quotient 3 as the next digit in the result. 
Result so far: 5073.0
The remainder is 26 after subtracting 153 from 179.
Since there are no more digits in the dividend, we add a zero to the remainder making it 260, and continue the process.

Going ahead to step 7:
The number 51 fits into 260 5 times, leaving a remainder of 5.
Write down 5 as next digit of the result. 
Result so far: 5073.5
Subtracting 255 from 260 leaves us with 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

Moving on to step 8:
The number 51 fits into 50 0 times, leaving a remainder of 50.
The next digit of our result is 0. 
Result so far: 5073.5
Deduct 0 from 50 and we're left 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.

Moving on to step 9:
500 divided by 51 is 9 with a remainder of 41.
Record the quotient 9 as the next digit in the result. 
Result so far: 5073.509
Deduct 459 from 500 and we're left with 41.
Since there are no more digits in the dividend, we add a zero to the remainder making it 410, and continue the process.

Step 10:
The number 51 fits into 410 8 times, leaving a remainder of 2.
Put 8 as the next digit of the answer. 
Result so far: 5073.5098
If we subtract 408 from 410, we get 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Moving on to step 11:
If we divide 20 by 51, we get 0 and a remainder of 20.
Record the quotient 0 as the next digit in the result. 
Result so far: 5073.5098
If we subtract 0 from 20, 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.

Going ahead to step 12:
51 goes into 200 3 times with a remainder of 47.
The next digit of our result is 3. 
Result so far: 5073.509803
The remainder is 47 after subtracting 153 from 200.
Since there are no more digits in the dividend, we add a zero to the remainder making it 470, and continue the process.

Advancing to step 13:
51 can be fit into 470 9 times, resulting in a remainder of 11.
The number 9 becomes the next digit in our result. 
Result so far: 5073.5098039
Subtracting 459 from 470 leaves us with 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 14:
51 can be fit into 110 2 times, resulting in a remainder of 8.
Write down 2 as next digit of the result. 
Result so far: 5073.50980392
Subtract 102 from 110 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.

The quotient of the division is 5073.50980392, and the remainder is 8e-09.