Let's divide 85815770 by 520
We want to divide 85815770 by 520.

Moving on to step 1:
520 goes into 8 0 times with a remainder of 8.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtracting 0 from 8 leaves us with 8.
Include the next digit (5) from the dividend after 8, then repeat: 85 / 520

Going ahead to step 2:
85 divided by 520 is 0 with a remainder of 85.
The next digit of our result is 0. 
Result so far: 0.0
Subtract 0 from 85 to get 85.
Bring next digit (8) of the dividend behind the 85 and repeat the process: 858 / 520

On to step 3:
When dividing 858 by 520, we get 1 with a remainder of 338.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
Deduct 520 from 858 and we're left with 338.
Append the next digit (1) from the dividend to 338 and continue with: 3381 / 520

Moving on to step 4:
When dividing 3381 by 520, we get 6 with a remainder of 261.
Put 6 as the next digit of the answer. 
Result so far: 16.0
The remainder is 261 after subtracting 3120 from 3381.
Grab the next digit (5) from the dividend, add it to 261, then carry on: 2615 / 520

Let's proceed to step 5:
When dividing 2615 by 520, we get 5 with a remainder of 15.
Record the quotient 5 as the next digit in the result. 
Result so far: 165.0
If we subtract 2600 from 2615, we get 15.
Grab the next digit (7) from the dividend, add it to 15, then carry on: 157 / 520

Step 6:
520 can be fit into 157 0 times, resulting in a remainder of 157.
The next digit of our result is 0. 
Result so far: 1650.0
If we take 0 away from 157, we end up with 157.
Include the next digit (7) from the dividend after 157, then repeat: 1577 / 520

Moving on to step 7:
If we divide 1577 by 520, we get 3 and a remainder of 17.
Write down 3 as next digit of the result. 
Result so far: 16503.0
If we subtract 1560 from 1577, we get 17.
Append the next digit (0) from the dividend to 17 and continue with: 170 / 520

Step 8:
The number 520 fits into 170 0 times, leaving a remainder of 170.
Use 0 as the next digit of our solution. 
Result so far: 165030.0
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.

Going ahead to step 9:
1700 divided by 520 is 3 with a remainder of 140.
Put 3 as the next digit of the answer. 
Result so far: 165030.3
If we take 1560 away from 1700, we end up with 140.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1400, and continue the process.

Advancing to step 10:
The number 520 fits into 1400 2 times, leaving a remainder of 360.
Write down 2 as next digit of the result. 
Result so far: 165030.32
Subtracting 1040 from 1400 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.

Step 11:
3600 divided by 520 is 6 with a remainder of 480.
Write down 6 as next digit of the result. 
Result so far: 165030.326
Deduct 3120 from 3600 and we're left 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.

Let's proceed to step 12:
4800 divided by 520 is 9 with a remainder of 120.
Write down 9 as next digit of the result. 
Result so far: 165030.3269
The remainder is 120 after subtracting 4680 from 4800.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1200, and continue the process.

Step 13:
The number 520 fits into 1200 2 times, leaving a remainder of 160.
Put 2 as the next digit of the answer. 
Result so far: 165030.32692
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 14:
1600 divided by 520 is 3 with a remainder of 40.
Record the quotient 3 as the next digit in the result. 
Result so far: 165030.326923
Subtracting 1560 from 1600 leaves us 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 15:
520 goes into 400 0 times with a remainder of 400.
Record the quotient 0 as the next digit in the result. 
Result so far: 165030.326923
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.

On to step 16:
If we divide 4000 by 520, we get 7 and a remainder of 360.
Record the quotient 7 as the next digit in the result. 
Result so far: 165030.32692307
Subtract 3640 from 4000 to get 360.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3600, and continue the process.

Our division results in 165030.32692307 with a remaining 3.6e-07.