642586 ÷ 86 
We're looking to find how many times 86 goes into 642586.

Advancing to step 1:
6 divided by 86 is 0 with a remainder of 6.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 6 leaves us with 6.
Bring next digit (4) of the dividend behind the 6 and repeat the process: 64 / 86

Moving on to step 2:
86 can be fit into 64 0 times, resulting in a remainder of 64.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 64, we end up with 64.
Append the next digit (2) from the dividend to 64 and continue with: 642 / 86

Advancing to step 3:
If we divide 642 by 86, we get 7 and a remainder of 40.
The next digit of our result is 7. 
Result so far: 7.0
Deduct 602 from 642 and we're left with 40.
Include the next digit (5) from the dividend after 40, then repeat: 405 / 86

Going ahead to step 4:
When dividing 405 by 86, we get 4 with a remainder of 61.
Use 4 as the next digit of our solution. 
Result so far: 74.0
The remainder is 61 after subtracting 344 from 405.
Take the next digit (8) from the dividend and append it to 61, then repeat: 618 / 86

Let's proceed to step 5:
86 can be fit into 618 7 times, resulting in a remainder of 16.
The next digit of our result is 7. 
Result so far: 747.0
If we take 602 away from 618, we end up with 16.
Grab the next digit (6) from the dividend, add it to 16, then carry on: 166 / 86

Step 6:
86 can be fit into 166 1 times, resulting in a remainder of 80.
Put 1 as the next digit of the answer. 
Result so far: 7471.0
If we subtract 86 from 166, we get 80.
Since there are no more digits in the dividend, we add a zero to the remainder making it 800, and continue the process.

Moving on to step 7:
If we divide 800 by 86, we get 9 and a remainder of 26.
Write down 9 as next digit of the result. 
Result so far: 7471.9
Subtract 774 from 800 to get 26.
Since there are no more digits in the dividend, we add a zero to the remainder making it 260, and continue the process.

Advancing to step 8:
The number 86 fits into 260 3 times, leaving a remainder of 2.
Record the quotient 3 as the next digit in the result. 
Result so far: 7471.93
If we subtract 258 from 260, we get 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Step 9:
20 divided by 86 is 0 with a remainder of 20.
Write down 0 as next digit of the result. 
Result so far: 7471.93
If we take 0 away from 20, we end up with 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Step 10:
86 goes into 200 2 times with a remainder of 28.
Write down 2 as next digit of the result. 
Result so far: 7471.9302
Subtracting 172 from 200 leaves us with 28.
Since there are no more digits in the dividend, we add a zero to the remainder making it 280, and continue the process.

Step 11:
If we divide 280 by 86, we get 3 and a remainder of 22.
The next digit of our result is 3. 
Result so far: 7471.93023
The remainder is 22 after subtracting 258 from 280.
Since there are no more digits in the dividend, we add a zero to the remainder making it 220, and continue the process.

On to step 12:
86 goes into 220 2 times with a remainder of 48.
Put 2 as the next digit of the answer. 
Result so far: 7471.930232
The remainder is 48 after subtracting 172 from 220.
Since there are no more digits in the dividend, we add a zero to the remainder making it 480, and continue the process.

Going ahead to step 13:
86 can be fit into 480 5 times, resulting in a remainder of 50.
The number 5 becomes the next digit in our result. 
Result so far: 7471.9302325
Subtract 430 from 480 to get 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

Step 14:
The number 86 fits into 500 5 times, leaving a remainder of 70.
Use 5 as the next digit of our solution. 
Result so far: 7471.93023255
If we subtract 430 from 500, we get 70.
Since there are no more digits in the dividend, we add a zero to the remainder making it 700, and continue the process.

The quotient of the division is 7471.93023255, and the remainder is 7e-08.