We're dividing 83686709 by 518 
Our goal is to divide 83686709 by 518.

Advancing to step 1:
8 divided by 518 is 0 with a remainder of 8.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 8, we get 8.
Fetch the next digit (3) from the dividend, attach it to 8 and continue: 83 / 518

Let's proceed to step 2:
83 divided by 518 is 0 with a remainder of 83.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 83 and we're left with 83.
Grab the next digit (6) from the dividend, add it to 83, then carry on: 836 / 518

Moving on to step 3:
If we divide 836 by 518, we get 1 and a remainder of 318.
Write down 1 as next digit of the result. 
Result so far: 1.0
If we subtract 518 from 836, we get 318.
Take the next digit (8) from the dividend and append it to 318, then repeat: 3188 / 518

On to step 4:
When dividing 3188 by 518, we get 6 with a remainder of 80.
Record the quotient 6 as the next digit in the result. 
Result so far: 16.0
If we subtract 3108 from 3188, we get 80.
Fetch the next digit (6) from the dividend, attach it to 80 and continue: 806 / 518

Let's proceed to step 5:
518 can be fit into 806 1 times, resulting in a remainder of 288.
Write down 1 as next digit of the result. 
Result so far: 161.0
If we take 518 away from 806, we end up with 288.
Fetch the next digit (7) from the dividend, attach it to 288 and continue: 2887 / 518

Moving on to step 6:
The number 518 fits into 2887 5 times, leaving a remainder of 297.
The number 5 becomes the next digit in our result. 
Result so far: 1615.0
Deduct 2590 from 2887 and we're left with 297.
Include the next digit (0) from the dividend after 297, then repeat: 2970 / 518

Let's proceed to step 7:
518 goes into 2970 5 times with a remainder of 380.
The next digit of our result is 5. 
Result so far: 16155.0
Subtracting 2590 from 2970 leaves us with 380.
Take the next digit (9) from the dividend and append it to 380, then repeat: 3809 / 518

On to step 8:
518 can be fit into 3809 7 times, resulting in a remainder of 183.
Record the quotient 7 as the next digit in the result. 
Result so far: 161557.0
Subtracting 3626 from 3809 leaves us with 183.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1830, and continue the process.

On to step 9:
1830 divided by 518 is 3 with a remainder of 276.
The number 3 becomes the next digit in our result. 
Result so far: 161557.3
If we take 1554 away from 1830, we end up with 276.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2760, and continue the process.

Moving on to step 10:
2760 divided by 518 is 5 with a remainder of 170.
Write down 5 as next digit of the result. 
Result so far: 161557.35
Subtract 2590 from 2760 to get 170.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1700, and continue the process.

On to step 11:
The number 518 fits into 1700 3 times, leaving a remainder of 146.
Write down 3 as next digit of the result. 
Result so far: 161557.353
If we subtract 1554 from 1700, we get 146.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1460, and continue the process.

Moving on to step 12:
1460 divided by 518 is 2 with a remainder of 424.
Write down 2 as next digit of the result. 
Result so far: 161557.3532
Subtract 1036 from 1460 to get 424.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4240, and continue the process.

On to step 13:
518 goes into 4240 8 times with a remainder of 96.
Write down 8 as next digit of the result. 
Result so far: 161557.35328
If we subtract 4144 from 4240, we get 96.
Since there are no more digits in the dividend, we add a zero to the remainder making it 960, and continue the process.

Let's proceed to step 14:
518 can be fit into 960 1 times, resulting in a remainder of 442.
Record the quotient 1 as the next digit in the result. 
Result so far: 161557.353281
The remainder is 442 after subtracting 518 from 960.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4420, and continue the process.

On to step 15:
518 can be fit into 4420 8 times, resulting in a remainder of 276.
Write down 8 as next digit of the result. 
Result so far: 161557.3532818
Subtract 4144 from 4420 to get 276.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2760, and continue the process.

Step 16:
If we divide 2760 by 518, we get 5 and a remainder of 170.
Write down 5 as next digit of the result. 
Result so far: 161557.35328185
Subtract 2590 from 2760 to get 170.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1700, and continue the process.

The final result is 161557.35328185 with a remainder of 1.7e-07.