We're dividing 668257 by 86 
We want to divide 668257 by 86.

Step 1:
If we divide 6 by 86, we get 0 and a remainder of 6.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 6 to get 6.
Grab the next digit (6) from the dividend, add it to 6, then carry on: 66 / 86

Advancing to step 2:
The number 86 fits into 66 0 times, leaving a remainder of 66.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 66 after subtracting 0 from 66.
Bring next digit (8) of the dividend behind the 66 and repeat the process: 668 / 86

Going ahead to step 3:
If we divide 668 by 86, we get 7 and a remainder of 66.
Use 7 as the next digit of our solution. 
Result so far: 7.0
Subtract 602 from 668 to get 66.
Bring next digit (2) of the dividend behind the 66 and repeat the process: 662 / 86

Advancing to step 4:
662 divided by 86 is 7 with a remainder of 60.
Put 7 as the next digit of the answer. 
Result so far: 77.0
If we subtract 602 from 662, we get 60.
Take the next digit (5) from the dividend and append it to 60, then repeat: 605 / 86

On to step 5:
86 goes into 605 7 times with a remainder of 3.
Write down 7 as next digit of the result. 
Result so far: 777.0
If we take 602 away from 605, we end up with 3.
Grab the next digit (7) from the dividend, add it to 3, then carry on: 37 / 86

On to step 6:
86 can be fit into 37 0 times, resulting in a remainder of 37.
The number 0 becomes the next digit in our result. 
Result so far: 7770.0
If we take 0 away from 37, we end up with 37.
Since there are no more digits in the dividend, we add a zero to the remainder making it 370, and continue the process.

Let's proceed to step 7:
86 goes into 370 4 times with a remainder of 26.
Write down 4 as next digit of the result. 
Result so far: 7770.4
If we subtract 344 from 370, we 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:
When dividing 260 by 86, we get 3 with a remainder of 2.
Use 3 as the next digit of our solution. 
Result so far: 7770.43
The remainder is 2 after subtracting 258 from 260.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Going ahead to step 9:
86 goes into 20 0 times with a remainder of 20.
Write down 0 as next digit of the result. 
Result so far: 7770.43
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: 7770.4302
The remainder is 28 after subtracting 172 from 200.
Since there are no more digits in the dividend, we add a zero to the remainder making it 280, and continue the process.

Advancing to step 11:
If we divide 280 by 86, we get 3 and a remainder of 22.
The number 3 becomes the next digit in our result. 
Result so far: 7770.43023
If we take 258 away from 280, we end up with 22.
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:
220 divided by 86 is 2 with a remainder of 48.
Write down 2 as next digit of the result. 
Result so far: 7770.430232
Subtracting 172 from 220 leaves us with 48.
Since there are no more digits in the dividend, we add a zero to the remainder making it 480, and continue the process.

Let's proceed to step 13:
The number 86 fits into 480 5 times, leaving a remainder of 50.
Put 5 as the next digit of the answer. 
Result so far: 7770.4302325
Deduct 430 from 480 and we're left with 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:
If we divide 500 by 86, we get 5 and a remainder of 70.
The next digit of our result is 5. 
Result so far: 7770.43023255
The remainder is 70 after subtracting 430 from 500.
Since there are no more digits in the dividend, we add a zero to the remainder making it 700, and continue the process.

Our division results in 7770.43023255 with a remaining 7e-08.