520858 divided by 51 
Our goal is to divide 520858 by 51.

Moving on to step 1:
51 goes into 5 0 times with a remainder of 5.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 5 after subtracting 0 from 5.
Take the next digit (2) from the dividend and append it to 5, then repeat: 52 / 51

Going ahead to step 2:
The number 51 fits into 52 1 times, leaving a remainder of 1.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
Subtracting 51 from 52 leaves us with 1.
Bring next digit (0) of the dividend behind the 1 and repeat the process: 10 / 51

Let's proceed to step 3:
If we divide 10 by 51, we get 0 and a remainder of 10.
The number 0 becomes the next digit in our result. 
Result so far: 10.0
Subtracting 0 from 10 leaves us with 10.
Grab the next digit (8) from the dividend, add it to 10, then carry on: 108 / 51

Step 4:
108 divided by 51 is 2 with a remainder of 6.
Write down 2 as next digit of the result. 
Result so far: 102.0
Deduct 102 from 108 and we're left with 6.
Take the next digit (5) from the dividend and append it to 6, then repeat: 65 / 51

On to step 5:
If we divide 65 by 51, we get 1 and a remainder of 14.
The number 1 becomes the next digit in our result. 
Result so far: 1021.0
Subtracting 51 from 65 leaves us with 14.
Include the next digit (8) from the dividend after 14, then repeat: 148 / 51

Advancing to step 6:
The number 51 fits into 148 2 times, leaving a remainder of 46.
Use 2 as the next digit of our solution. 
Result so far: 10212.0
Subtract 102 from 148 to get 46.
Since there are no more digits in the dividend, we add a zero to the remainder making it 460, and continue the process.

Moving on to step 7:
460 divided by 51 is 9 with a remainder of 1.
Put 9 as the next digit of the answer. 
Result so far: 10212.9
Subtracting 459 from 460 leaves us with 1.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

Moving on to step 8:
When dividing 10 by 51, we get 0 with a remainder of 10.
Record the quotient 0 as the next digit in the result. 
Result so far: 10212.9
The remainder is 10 after subtracting 0 from 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Going ahead to step 9:
51 can be fit into 100 1 times, resulting in a remainder of 49.
The next digit of our result is 1. 
Result so far: 10212.901
If we subtract 51 from 100, we get 49.
Since there are no more digits in the dividend, we add a zero to the remainder making it 490, and continue the process.

Moving on to step 10:
When dividing 490 by 51, we get 9 with a remainder of 31.
Use 9 as the next digit of our solution. 
Result so far: 10212.9019
If we subtract 459 from 490, we get 31.
Since there are no more digits in the dividend, we add a zero to the remainder making it 310, and continue the process.

On to step 11:
When dividing 310 by 51, we get 6 with a remainder of 4.
The number 6 becomes the next digit in our result. 
Result so far: 10212.90196
Subtracting 306 from 310 leaves us with 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Advancing to step 12:
51 goes into 40 0 times with a remainder of 40.
The number 0 becomes the next digit in our result. 
Result so far: 10212.90196
Deduct 0 from 40 and we're left with 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Moving on to step 13:
51 goes into 400 7 times with a remainder of 43.
The number 7 becomes the next digit in our result. 
Result so far: 10212.9019607
If we take 357 away from 400, we end up with 43.
Since there are no more digits in the dividend, we add a zero to the remainder making it 430, and continue the process.

Moving on to step 14:
430 divided by 51 is 8 with a remainder of 22.
Record the quotient 8 as the next digit in the result. 
Result so far: 10212.90196078
If we subtract 408 from 430, we get 22.
Since there are no more digits in the dividend, we add a zero to the remainder making it 220, and continue the process.

The final outcome is 10212.90196078, with a leftover of 2.2e-08.