We're dividing 86585269 by 643 
Let's see how many times 643 fits into 86585269.

Moving on to step 1:
643 can be fit into 8 0 times, resulting in a remainder of 8.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 8, we get 8.
Include the next digit (6) from the dividend after 8, then repeat: 86 / 643

On to step 2:
The number 643 fits into 86 0 times, leaving a remainder of 86.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 86 after subtracting 0 from 86.
Bring next digit (5) of the dividend behind the 86 and repeat the process: 865 / 643

Going ahead to step 3:
When dividing 865 by 643, we get 1 with a remainder of 222.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
The remainder is 222 after subtracting 643 from 865.
Fetch the next digit (8) from the dividend, attach it to 222 and continue: 2228 / 643

Advancing to step 4:
2228 divided by 643 is 3 with a remainder of 299.
The next digit of our result is 3. 
Result so far: 13.0
The remainder is 299 after subtracting 1929 from 2228.
Fetch the next digit (5) from the dividend, attach it to 299 and continue: 2995 / 643

Going ahead to step 5:
643 can be fit into 2995 4 times, resulting in a remainder of 423.
Use 4 as the next digit of our solution. 
Result so far: 134.0
The remainder is 423 after subtracting 2572 from 2995.
Include the next digit (2) from the dividend after 423, then repeat: 4232 / 643

Advancing to step 6:
If we divide 4232 by 643, we get 6 and a remainder of 374.
Use 6 as the next digit of our solution. 
Result so far: 1346.0
Deduct 3858 from 4232 and we're left with 374.
Include the next digit (6) from the dividend after 374, then repeat: 3746 / 643

Moving on to step 7:
The number 643 fits into 3746 5 times, leaving a remainder of 531.
Put 5 as the next digit of the answer. 
Result so far: 13465.0
If we take 3215 away from 3746, we end up with 531.
Append the next digit (9) from the dividend to 531 and continue with: 5319 / 643

Let's proceed to step 8:
643 goes into 5319 8 times with a remainder of 175.
The next digit of our result is 8. 
Result so far: 134658.0
The remainder is 175 after subtracting 5144 from 5319.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1750, and continue the process.

Step 9:
The number 643 fits into 1750 2 times, leaving a remainder of 464.
The next digit of our result is 2. 
Result so far: 134658.2
If we subtract 1286 from 1750, we get 464.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4640, and continue the process.

Let's proceed to step 10:
643 can be fit into 4640 7 times, resulting in a remainder of 139.
The next digit of our result is 7. 
Result so far: 134658.27
Deduct 4501 from 4640 and we're left with 139.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1390, and continue the process.

Advancing to step 11:
1390 divided by 643 is 2 with a remainder of 104.
Use 2 as the next digit of our solution. 
Result so far: 134658.272
Subtracting 1286 from 1390 leaves us with 104.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1040, and continue the process.

Moving on to step 12:
When dividing 1040 by 643, we get 1 with a remainder of 397.
The number 1 becomes the next digit in our result. 
Result so far: 134658.2721
If we take 643 away from 1040, we end up with 397.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3970, and continue the process.

Step 13:
643 can be fit into 3970 6 times, resulting in a remainder of 112.
Use 6 as the next digit of our solution. 
Result so far: 134658.27216
Subtract 3858 from 3970 to get 112.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1120, and continue the process.

On to step 14:
When dividing 1120 by 643, we get 1 with a remainder of 477.
The number 1 becomes the next digit in our result. 
Result so far: 134658.272161
The remainder is 477 after subtracting 643 from 1120.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4770, and continue the process.

Advancing to step 15:
643 goes into 4770 7 times with a remainder of 269.
Write down 7 as next digit of the result. 
Result so far: 134658.2721617
Deduct 4501 from 4770 and we're left with 269.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2690, and continue the process.

On to step 16:
When dividing 2690 by 643, we get 4 with a remainder of 118.
Use 4 as the next digit of our solution. 
Result so far: 134658.27216174
Deduct 2572 from 2690 and we're left with 118.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1180, and continue the process.

After the division, we end up with 134658.27216174 and a remainder of 1.18e-07.