309818 divided by 86 
We're looking to find how many times 86 goes into 309818.

On to step 1:
86 goes into 3 0 times with a remainder of 3.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we take 0 away from 3, we end up with 3.
Append the next digit (0) from the dividend to 3 and continue with: 30 / 86

Moving on to step 2:
86 goes into 30 0 times with a remainder of 30.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtracting 0 from 30 leaves us with 30.
Take the next digit (9) from the dividend and append it to 30, then repeat: 309 / 86

Going ahead to step 3:
86 goes into 309 3 times with a remainder of 51.
Use 3 as the next digit of our solution. 
Result so far: 3.0
If we subtract 258 from 309, we get 51.
Append the next digit (8) from the dividend to 51 and continue with: 518 / 86

On to step 4:
The number 86 fits into 518 6 times, leaving a remainder of 2.
Use 6 as the next digit of our solution. 
Result so far: 36.0
If we subtract 516 from 518, we get 2.
Include the next digit (1) from the dividend after 2, then repeat: 21 / 86

Let's proceed to step 5:
21 divided by 86 is 0 with a remainder of 21.
Write down 0 as next digit of the result. 
Result so far: 360.0
Deduct 0 from 21 and we're left with 21.
Include the next digit (8) from the dividend after 21, then repeat: 218 / 86

Advancing to step 6:
When dividing 218 by 86, we get 2 with a remainder of 46.
Record the quotient 2 as the next digit in the result. 
Result so far: 3602.0
Deduct 172 from 218 and we're left with 46.
Since there are no more digits in the dividend, we add a zero to the remainder making it 460, and continue the process.

On to step 7:
460 divided by 86 is 5 with a remainder of 30.
Record the quotient 5 as the next digit in the result. 
Result so far: 3602.5
Subtract 430 from 460 to get 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Advancing to step 8:
When dividing 300 by 86, we get 3 with a remainder of 42.
Write down 3 as next digit of the result. 
Result so far: 3602.53
If we take 258 away from 300, we end up with 42.
Since there are no more digits in the dividend, we add a zero to the remainder making it 420, and continue the process.

Advancing to step 9:
If we divide 420 by 86, we get 4 and a remainder of 76.
Put 4 as the next digit of the answer. 
Result so far: 3602.534
Subtract 344 from 420 to get 76.
Since there are no more digits in the dividend, we add a zero to the remainder making it 760, and continue the process.

Moving on to step 10:
86 goes into 760 8 times with a remainder of 72.
Record the quotient 8 as the next digit in the result. 
Result so far: 3602.5348
The remainder is 72 after subtracting 688 from 760.
Since there are no more digits in the dividend, we add a zero to the remainder making it 720, and continue the process.

Advancing to step 11:
86 can be fit into 720 8 times, resulting in a remainder of 32.
The next digit of our result is 8. 
Result so far: 3602.53488
Subtract 688 from 720 to get 32.
Since there are no more digits in the dividend, we add a zero to the remainder making it 320, and continue the process.

The quotient of the division is 3602.53488, and the remainder is 3.2e-05.