Let's divide 86039286 by 840
We want to figure out the number of times 86039286 can be divided by 840.

Moving on to step 1:
If we divide 8 by 840, we get 0 and a remainder of 8.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 8 to get 8.
Fetch the next digit (6) from the dividend, attach it to 8 and continue: 86 / 840

On to step 2:
86 divided by 840 is 0 with a remainder of 86.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 86, we end up with 86.
Bring next digit (0) of the dividend behind the 86 and repeat the process: 860 / 840

Let's proceed to step 3:
If we divide 860 by 840, we get 1 and a remainder of 20.
Use 1 as the next digit of our solution. 
Result so far: 1.0
Subtracting 840 from 860 leaves us with 20.
Append the next digit (3) from the dividend to 20 and continue with: 203 / 840

Going ahead to step 4:
840 can be fit into 203 0 times, resulting in a remainder of 203.
Write down 0 as next digit of the result. 
Result so far: 10.0
Subtracting 0 from 203 leaves us with 203.
Include the next digit (9) from the dividend after 203, then repeat: 2039 / 840

Step 5:
840 goes into 2039 2 times with a remainder of 359.
The number 2 becomes the next digit in our result. 
Result so far: 102.0
The remainder is 359 after subtracting 1680 from 2039.
Take the next digit (2) from the dividend and append it to 359, then repeat: 3592 / 840

On to step 6:
When dividing 3592 by 840, we get 4 with a remainder of 232.
Use 4 as the next digit of our solution. 
Result so far: 1024.0
The remainder is 232 after subtracting 3360 from 3592.
Fetch the next digit (8) from the dividend, attach it to 232 and continue: 2328 / 840

Going ahead to step 7:
The number 840 fits into 2328 2 times, leaving a remainder of 648.
The next digit of our result is 2. 
Result so far: 10242.0
Deduct 1680 from 2328 and we're left with 648.
Fetch the next digit (6) from the dividend, attach it to 648 and continue: 6486 / 840

Going ahead to step 8:
The number 840 fits into 6486 7 times, leaving a remainder of 606.
Use 7 as the next digit of our solution. 
Result so far: 102427.0
If we subtract 5880 from 6486, we get 606.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6060, and continue the process.

Step 9:
840 goes into 6060 7 times with a remainder of 180.
Write down 7 as next digit of the result. 
Result so far: 102427.7
Subtract 5880 from 6060 to get 180.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1800, and continue the process.

Moving on to step 10:
840 goes into 1800 2 times with a remainder of 120.
Use 2 as the next digit of our solution. 
Result so far: 102427.72
Subtract 1680 from 1800 to get 120.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1200, and continue the process.

Moving on to step 11:
When dividing 1200 by 840, we get 1 with a remainder of 360.
The number 1 becomes the next digit in our result. 
Result so far: 102427.721
Subtracting 840 from 1200 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.

Going ahead to step 12:
The number 840 fits into 3600 4 times, leaving a remainder of 240.
The number 4 becomes the next digit in our result. 
Result so far: 102427.7214
Subtracting 3360 from 3600 leaves us with 240.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2400, and continue the process.

Step 13:
The number 840 fits into 2400 2 times, leaving a remainder of 720.
Record the quotient 2 as the next digit in the result. 
Result so far: 102427.72142
If we subtract 1680 from 2400, we get 720.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7200, and continue the process.

On to step 14:
The number 840 fits into 7200 8 times, leaving a remainder of 480.
Put 8 as the next digit of the answer. 
Result so far: 102427.721428
Subtracting 6720 from 7200 leaves us 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.

Advancing to step 15:
When dividing 4800 by 840, we get 5 with a remainder of 600.
The number 5 becomes the next digit in our result. 
Result so far: 102427.7214285
The remainder is 600 after subtracting 4200 from 4800.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6000, and continue the process.

On to step 16:
6000 divided by 840 is 7 with a remainder of 120.
Use 7 as the next digit of our solution. 
Result so far: 102427.72142857
Deduct 5880 from 6000 and we're left with 120.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1200, and continue the process.

Our division results in 102427.72142857 with a remaining 1.2e-07.