We're dividing 16585658 by 521 
Let's see how many times 521 fits into 16585658.

Advancing to step 1:
The number 521 fits into 1 0 times, leaving a remainder of 1.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 1, we end up with 1.
Take the next digit (6) from the dividend and append it to 1, then repeat: 16 / 521

Moving on to step 2:
521 goes into 16 0 times with a remainder of 16.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 16 after subtracting 0 from 16.
Append the next digit (5) from the dividend to 16 and continue with: 165 / 521

Going ahead to step 3:
The number 521 fits into 165 0 times, leaving a remainder of 165.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 165 after subtracting 0 from 165.
Include the next digit (8) from the dividend after 165, then repeat: 1658 / 521

Going ahead to step 4:
521 can be fit into 1658 3 times, resulting in a remainder of 95.
Record the quotient 3 as the next digit in the result. 
Result so far: 3.0
Subtract 1563 from 1658 to get 95.
Fetch the next digit (5) from the dividend, attach it to 95 and continue: 955 / 521

Let's proceed to step 5:
521 goes into 955 1 times with a remainder of 434.
The next digit of our result is 1. 
Result so far: 31.0
If we subtract 521 from 955, we get 434.
Bring next digit (6) of the dividend behind the 434 and repeat the process: 4346 / 521

Advancing to step 6:
521 goes into 4346 8 times with a remainder of 178.
The next digit of our result is 8. 
Result so far: 318.0
Subtract 4168 from 4346 to get 178.
Fetch the next digit (5) from the dividend, attach it to 178 and continue: 1785 / 521

Advancing to step 7:
The number 521 fits into 1785 3 times, leaving a remainder of 222.
Use 3 as the next digit of our solution. 
Result so far: 3183.0
The remainder is 222 after subtracting 1563 from 1785.
Include the next digit (8) from the dividend after 222, then repeat: 2228 / 521

Advancing to step 8:
When dividing 2228 by 521, we get 4 with a remainder of 144.
Record the quotient 4 as the next digit in the result. 
Result so far: 31834.0
If we subtract 2084 from 2228, we get 144.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1440, and continue the process.

Moving on to step 9:
521 can be fit into 1440 2 times, resulting in a remainder of 398.
Write down 2 as next digit of the result. 
Result so far: 31834.2
The remainder is 398 after subtracting 1042 from 1440.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3980, and continue the process.

Step 10:
3980 divided by 521 is 7 with a remainder of 333.
Put 7 as the next digit of the answer. 
Result so far: 31834.27
The remainder is 333 after subtracting 3647 from 3980.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3330, and continue the process.

Moving on to step 11:
3330 divided by 521 is 6 with a remainder of 204.
The number 6 becomes the next digit in our result. 
Result so far: 31834.276
Subtracting 3126 from 3330 leaves us with 204.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2040, and continue the process.

Going ahead to step 12:
The number 521 fits into 2040 3 times, leaving a remainder of 477.
Record the quotient 3 as the next digit in the result. 
Result so far: 31834.2763
If we take 1563 away from 2040, we end up with 477.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4770, and continue the process.

Let's proceed to step 13:
4770 divided by 521 is 9 with a remainder of 81.
Use 9 as the next digit of our solution. 
Result so far: 31834.27639
If we take 4689 away from 4770, we end up with 81.
Since there are no more digits in the dividend, we add a zero to the remainder making it 810, and continue the process.

Advancing to step 14:
If we divide 810 by 521, we get 1 and a remainder of 289.
The number 1 becomes the next digit in our result. 
Result so far: 31834.276391
Subtracting 521 from 810 leaves us with 289.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2890, and continue the process.

Going ahead to step 15:
If we divide 2890 by 521, we get 5 and a remainder of 285.
Record the quotient 5 as the next digit in the result. 
Result so far: 31834.2763915
Deduct 2605 from 2890 and we're left with 285.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2850, and continue the process.

On to step 16:
2850 divided by 521 is 5 with a remainder of 245.
Use 5 as the next digit of our solution. 
Result so far: 31834.27639155
If we take 2605 away from 2850, we end up with 245.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2450, and continue the process.

The final outcome is 31834.27639155, with a leftover of 2.45e-07.