We divide 646307 by 86
We want to divide 646307 by 86.

Advancing to step 1:
The number 86 fits into 6 0 times, leaving a remainder of 6.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 6, we end up with 6.
Take the next digit (4) from the dividend and append it to 6, then repeat: 64 / 86

Moving on to step 2:
The number 86 fits into 64 0 times, leaving a remainder of 64.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we subtract 0 from 64, we get 64.
Include the next digit (6) from the dividend after 64, then repeat: 646 / 86

Advancing to step 3:
If we divide 646 by 86, we get 7 and a remainder of 44.
Record the quotient 7 as the next digit in the result. 
Result so far: 7.0
The remainder is 44 after subtracting 602 from 646.
Fetch the next digit (3) from the dividend, attach it to 44 and continue: 443 / 86

On to step 4:
The number 86 fits into 443 5 times, leaving a remainder of 13.
Record the quotient 5 as the next digit in the result. 
Result so far: 75.0
The remainder is 13 after subtracting 430 from 443.
Fetch the next digit (0) from the dividend, attach it to 13 and continue: 130 / 86

Moving on to step 5:
If we divide 130 by 86, we get 1 and a remainder of 44.
Use 1 as the next digit of our solution. 
Result so far: 751.0
If we take 86 away from 130, we end up with 44.
Take the next digit (7) from the dividend and append it to 44, then repeat: 447 / 86

Going ahead to step 6:
If we divide 447 by 86, we get 5 and a remainder of 17.
Put 5 as the next digit of the answer. 
Result so far: 7515.0
If we take 430 away from 447, we end up with 17.
Since there are no more digits in the dividend, we add a zero to the remainder making it 170, and continue the process.

Going ahead to step 7:
86 can be fit into 170 1 times, resulting in a remainder of 84.
Record the quotient 1 as the next digit in the result. 
Result so far: 7515.1
If we subtract 86 from 170, we get 84.
Since there are no more digits in the dividend, we add a zero to the remainder making it 840, and continue the process.

Step 8:
840 divided by 86 is 9 with a remainder of 66.
The next digit of our result is 9. 
Result so far: 7515.19
If we subtract 774 from 840, we get 66.
Since there are no more digits in the dividend, we add a zero to the remainder making it 660, and continue the process.

Going ahead to step 9:
The number 86 fits into 660 7 times, leaving a remainder of 58.
The number 7 becomes the next digit in our result. 
Result so far: 7515.197
If we take 602 away from 660, we end up with 58.
Since there are no more digits in the dividend, we add a zero to the remainder making it 580, and continue the process.

Going ahead to step 10:
580 divided by 86 is 6 with a remainder of 64.
The next digit of our result is 6. 
Result so far: 7515.1976
Subtracting 516 from 580 leaves us with 64.
Since there are no more digits in the dividend, we add a zero to the remainder making it 640, and continue the process.

Advancing to step 11:
640 divided by 86 is 7 with a remainder of 38.
Use 7 as the next digit of our solution. 
Result so far: 7515.19767
If we subtract 602 from 640, we get 38.
Since there are no more digits in the dividend, we add a zero to the remainder making it 380, and continue the process.

Advancing to step 12:
86 can be fit into 380 4 times, resulting in a remainder of 36.
Put 4 as the next digit of the answer. 
Result so far: 7515.197674
Subtracting 344 from 380 leaves us with 36.
Since there are no more digits in the dividend, we add a zero to the remainder making it 360, and continue the process.

On to step 13:
The number 86 fits into 360 4 times, leaving a remainder of 16.
The next digit of our result is 4. 
Result so far: 7515.1976744
Subtract 344 from 360 to get 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

The quotient of the division is 7515.1976744, and the remainder is 1.6e-07.