We look at the division of 57408588 by 520 
Let's see how many times 520 fits into 57408588.

Step 1:
520 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
If we subtract 0 from 5, we get 5.
Take the next digit (7) from the dividend and append it to 5, then repeat: 57 / 520

Moving on to step 2:
520 can be fit into 57 0 times, resulting in a remainder of 57.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 57 and we're left with 57.
Fetch the next digit (4) from the dividend, attach it to 57 and continue: 574 / 520

Step 3:
520 can be fit into 574 1 times, resulting in a remainder of 54.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
If we take 520 away from 574, we end up with 54.
Fetch the next digit (0) from the dividend, attach it to 54 and continue: 540 / 520

Step 4:
520 can be fit into 540 1 times, resulting in a remainder of 20.
The next digit of our result is 1. 
Result so far: 11.0
The remainder is 20 after subtracting 520 from 540.
Take the next digit (8) from the dividend and append it to 20, then repeat: 208 / 520

Step 5:
208 divided by 520 is 0 with a remainder of 208.
Use 0 as the next digit of our solution. 
Result so far: 110.0
The remainder is 208 after subtracting 0 from 208.
Bring next digit (5) of the dividend behind the 208 and repeat the process: 2085 / 520

Let's proceed to step 6:
2085 divided by 520 is 4 with a remainder of 5.
Use 4 as the next digit of our solution. 
Result so far: 1104.0
If we subtract 2080 from 2085, we get 5.
Include the next digit (8) from the dividend after 5, then repeat: 58 / 520

On to step 7:
The number 520 fits into 58 0 times, leaving a remainder of 58.
Put 0 as the next digit of the answer. 
Result so far: 11040.0
Subtracting 0 from 58 leaves us with 58.
Take the next digit (8) from the dividend and append it to 58, then repeat: 588 / 520

Moving on to step 8:
520 goes into 588 1 times with a remainder of 68.
Put 1 as the next digit of the answer. 
Result so far: 110401.0
Deduct 520 from 588 and we're left with 68.
Since there are no more digits in the dividend, we add a zero to the remainder making it 680, and continue the process.

Let's proceed to step 9:
520 goes into 680 1 times with a remainder of 160.
The next digit of our result is 1. 
Result so far: 110401.1
Deduct 520 from 680 and we're left with 160.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1600, and continue the process.

Let's proceed to step 10:
If we divide 1600 by 520, we get 3 and a remainder of 40.
Put 3 as the next digit of the answer. 
Result so far: 110401.13
The remainder is 40 after subtracting 1560 from 1600.
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 11:
400 divided by 520 is 0 with a remainder of 400.
Put 0 as the next digit of the answer. 
Result so far: 110401.13
Subtract 0 from 400 to get 400.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4000, and continue the process.

Moving on to step 12:
520 can be fit into 4000 7 times, resulting in a remainder of 360.
Write down 7 as next digit of the result. 
Result so far: 110401.1307
Subtracting 3640 from 4000 leaves us with 360.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3600, and continue the process.

Advancing to step 13:
When dividing 3600 by 520, we get 6 with a remainder of 480.
The next digit of our result is 6. 
Result so far: 110401.13076
Subtracting 3120 from 3600 leaves us with 480.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4800, and continue the process.

On to step 14:
If we divide 4800 by 520, we get 9 and a remainder of 120.
The next digit of our result is 9. 
Result so far: 110401.130769
If we subtract 4680 from 4800, we get 120.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1200, and continue the process.

Advancing to step 15:
520 can be fit into 1200 2 times, resulting in a remainder of 160.
The number 2 becomes the next digit in our result. 
Result so far: 110401.1307692
If we subtract 1040 from 1200, we get 160.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1600, and continue the process.

On to step 16:
When dividing 1600 by 520, we get 3 with a remainder of 40.
Record the quotient 3 as the next digit in the result. 
Result so far: 110401.13076923
If we take 1560 away from 1600, we end up 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.

After the division, we end up with 110401.13076923 and a remainder of 4e-08.