Let's divide 30971 by 86
Our goal is to divide 30971 by 86.

Advancing to step 1:
86 can be fit into 3 0 times, resulting in a remainder of 3.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 3, we end up with 3.
Grab the next digit (0) from the dividend, add it to 3, then carry on: 30 / 86

On to step 2:
The number 86 fits into 30 0 times, leaving a remainder of 30.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 30, we end up with 30.
Fetch the next digit (9) from the dividend, attach it to 30 and continue: 309 / 86

On to step 3:
86 can be fit into 309 3 times, resulting in a remainder of 51.
Write down 3 as next digit of the result. 
Result so far: 3.0
If we take 258 away from 309, we end up with 51.
Append the next digit (7) from the dividend to 51 and continue with: 517 / 86

On to step 4:
86 can be fit into 517 6 times, resulting in a remainder of 1.
The number 6 becomes the next digit in our result. 
Result so far: 36.0
Subtract 516 from 517 to get 1.
Grab the next digit (1) from the dividend, add it to 1, then carry on: 11 / 86

Moving on to step 5:
11 divided by 86 is 0 with a remainder of 11.
The number 0 becomes the next digit in our result. 
Result so far: 360.0
If we subtract 0 from 11, we get 11.
Since there are no more digits in the dividend, we add a zero to the remainder making it 110, and continue the process.

Advancing to step 6:
110 divided by 86 is 1 with a remainder of 24.
Write down 1 as next digit of the result. 
Result so far: 360.1
The remainder is 24 after subtracting 86 from 110.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

Advancing to step 7:
86 goes into 240 2 times with a remainder of 68.
The next digit of our result is 2. 
Result so far: 360.12
The remainder is 68 after subtracting 172 from 240.
Since there are no more digits in the dividend, we add a zero to the remainder making it 680, and continue the process.

On to step 8:
When dividing 680 by 86, we get 7 with a remainder of 78.
The number 7 becomes the next digit in our result. 
Result so far: 360.127
The remainder is 78 after subtracting 602 from 680.
Since there are no more digits in the dividend, we add a zero to the remainder making it 780, and continue the process.

Step 9:
86 goes into 780 9 times with a remainder of 6.
The number 9 becomes the next digit in our result. 
Result so far: 360.1279
The remainder is 6 after subtracting 774 from 780.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

On to step 10:
86 goes into 60 0 times with a remainder of 60.
The number 0 becomes the next digit in our result. 
Result so far: 360.1279
If we take 0 away from 60, we end up with 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

Going ahead to step 11:
86 goes into 600 6 times with a remainder of 84.
Use 6 as the next digit of our solution. 
Result so far: 360.127906
If we take 516 away from 600, we end up with 84.
Since there are no more digits in the dividend, we add a zero to the remainder making it 840, and continue the process.

Moving on to step 12:
If we divide 840 by 86, we get 9 and a remainder of 66.
The next digit of our result is 9. 
Result so far: 360.1279069
Deduct 774 from 840 and we're left with 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 13:
The number 86 fits into 660 7 times, leaving a remainder of 58.
Write down 7 as next digit of the result. 
Result so far: 360.12790697
Subtract 602 from 660 to get 58.
Since there are no more digits in the dividend, we add a zero to the remainder making it 580, and continue the process.

After the division, we end up with 360.12790697 and a remainder of 5.8e-08.