Let's divide 989971 by 86
We're looking to find how many times 86 goes into 989971.

Going ahead to step 1:
86 goes into 9 0 times with a remainder of 9.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 9 to get 9.
Append the next digit (8) from the dividend to 9 and continue with: 98 / 86

Moving on to step 2:
The number 86 fits into 98 1 times, leaving a remainder of 12.
Write down 1 as next digit of the result. 
Result so far: 1.0
Subtracting 86 from 98 leaves us with 12.
Grab the next digit (9) from the dividend, add it to 12, then carry on: 129 / 86

Step 3:
If we divide 129 by 86, we get 1 and a remainder of 43.
Use 1 as the next digit of our solution. 
Result so far: 11.0
If we subtract 86 from 129, we get 43.
Bring next digit (9) of the dividend behind the 43 and repeat the process: 439 / 86

On to step 4:
439 divided by 86 is 5 with a remainder of 9.
The number 5 becomes the next digit in our result. 
Result so far: 115.0
Subtracting 430 from 439 leaves us with 9.
Fetch the next digit (7) from the dividend, attach it to 9 and continue: 97 / 86

Let's proceed to step 5:
86 can be fit into 97 1 times, resulting in a remainder of 11.
Record the quotient 1 as the next digit in the result. 
Result so far: 1151.0
If we take 86 away from 97, we end up with 11.
Grab the next digit (1) from the dividend, add it to 11, then carry on: 111 / 86

Step 6:
When dividing 111 by 86, we get 1 with a remainder of 25.
Use 1 as the next digit of our solution. 
Result so far: 11511.0
Subtract 86 from 111 to get 25.
Since there are no more digits in the dividend, we add a zero to the remainder making it 250, and continue the process.

On to step 7:
The number 86 fits into 250 2 times, leaving a remainder of 78.
The next digit of our result is 2. 
Result so far: 11511.2
Subtracting 172 from 250 leaves us with 78.
Since there are no more digits in the dividend, we add a zero to the remainder making it 780, and continue the process.

Going ahead to step 8:
If we divide 780 by 86, we get 9 and a remainder of 6.
Put 9 as the next digit of the answer. 
Result so far: 11511.29
Subtract 774 from 780 to get 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Let's proceed to step 9:
If we divide 60 by 86, we get 0 and a remainder of 60.
Use 0 as the next digit of our solution. 
Result so far: 11511.29
If we subtract 0 from 60, we get 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

Step 10:
86 can be fit into 600 6 times, resulting in a remainder of 84.
The number 6 becomes the next digit in our result. 
Result so far: 11511.2906
If we subtract 516 from 600, 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 11:
When dividing 840 by 86, we get 9 with a remainder of 66.
Put 9 as the next digit of the answer. 
Result so far: 11511.29069
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.

Step 12:
660 divided by 86 is 7 with a remainder of 58.
Use 7 as the next digit of our solution. 
Result so far: 11511.290697
Subtracting 602 from 660 leaves us 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.

Moving on to step 13:
If we divide 580 by 86, we get 6 and a remainder of 64.
Put 6 as the next digit of the answer. 
Result so far: 11511.2906976
The remainder is 64 after subtracting 516 from 580.
Since there are no more digits in the dividend, we add a zero to the remainder making it 640, and continue the process.

On to step 14:
86 goes into 640 7 times with a remainder of 38.
Put 7 as the next digit of the answer. 
Result so far: 11511.29069767
Deduct 602 from 640 and we're left with 38.
Since there are no more digits in the dividend, we add a zero to the remainder making it 380, and continue the process.

The quotient of the division is 11511.29069767, and the remainder is 3.8e-08.