We're dividing 51237596 by 878 
Let's see how many times 878 fits into 51237596.

Step 1:
If we divide 5 by 878, we get 0 and a remainder of 5.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 5 and we're left with 5.
Fetch the next digit (1) from the dividend, attach it to 5 and continue: 51 / 878

Advancing to step 2:
51 divided by 878 is 0 with a remainder of 51.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 51, we get 51.
Grab the next digit (2) from the dividend, add it to 51, then carry on: 512 / 878

Let's proceed to step 3:
878 goes into 512 0 times with a remainder of 512.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtracting 0 from 512 leaves us with 512.
Include the next digit (3) from the dividend after 512, then repeat: 5123 / 878

On to step 4:
When dividing 5123 by 878, we get 5 with a remainder of 733.
Record the quotient 5 as the next digit in the result. 
Result so far: 5.0
If we subtract 4390 from 5123, we get 733.
Append the next digit (7) from the dividend to 733 and continue with: 7337 / 878

Let's proceed to step 5:
878 goes into 7337 8 times with a remainder of 313.
Put 8 as the next digit of the answer. 
Result so far: 58.0
Subtract 7024 from 7337 to get 313.
Take the next digit (5) from the dividend and append it to 313, then repeat: 3135 / 878

Step 6:
3135 divided by 878 is 3 with a remainder of 501.
Use 3 as the next digit of our solution. 
Result so far: 583.0
The remainder is 501 after subtracting 2634 from 3135.
Take the next digit (9) from the dividend and append it to 501, then repeat: 5019 / 878

Moving on to step 7:
878 goes into 5019 5 times with a remainder of 629.
Use 5 as the next digit of our solution. 
Result so far: 5835.0
Subtract 4390 from 5019 to get 629.
Append the next digit (6) from the dividend to 629 and continue with: 6296 / 878

Step 8:
If we divide 6296 by 878, we get 7 and a remainder of 150.
Put 7 as the next digit of the answer. 
Result so far: 58357.0
Deduct 6146 from 6296 and we're left with 150.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1500, and continue the process.

Step 9:
When dividing 1500 by 878, we get 1 with a remainder of 622.
The number 1 becomes the next digit in our result. 
Result so far: 58357.1
If we subtract 878 from 1500, we get 622.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6220, and continue the process.

Going ahead to step 10:
When dividing 6220 by 878, we get 7 with a remainder of 74.
Use 7 as the next digit of our solution. 
Result so far: 58357.17
Deduct 6146 from 6220 and we're left with 74.
Since there are no more digits in the dividend, we add a zero to the remainder making it 740, and continue the process.

Advancing to step 11:
878 can be fit into 740 0 times, resulting in a remainder of 740.
The next digit of our result is 0. 
Result so far: 58357.17
If we subtract 0 from 740, we get 740.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7400, and continue the process.

Step 12:
878 can be fit into 7400 8 times, resulting in a remainder of 376.
Record the quotient 8 as the next digit in the result. 
Result so far: 58357.1708
If we take 7024 away from 7400, we end up with 376.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3760, and continue the process.

Advancing to step 13:
878 goes into 3760 4 times with a remainder of 248.
The number 4 becomes the next digit in our result. 
Result so far: 58357.17084
The remainder is 248 after subtracting 3512 from 3760.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2480, and continue the process.

On to step 14:
If we divide 2480 by 878, we get 2 and a remainder of 724.
The number 2 becomes the next digit in our result. 
Result so far: 58357.170842
If we take 1756 away from 2480, we end up with 724.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7240, and continue the process.

Step 15:
The number 878 fits into 7240 8 times, leaving a remainder of 216.
Use 8 as the next digit of our solution. 
Result so far: 58357.1708428
If we subtract 7024 from 7240, we get 216.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2160, and continue the process.

Step 16:
878 can be fit into 2160 2 times, resulting in a remainder of 404.
Put 2 as the next digit of the answer. 
Result so far: 58357.17084282
Subtract 1756 from 2160 to get 404.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4040, and continue the process.

After the division, we end up with 58357.17084282 and a remainder of 4.04e-07.