We look at the division of 334289 by 86 
We want to figure out the number of times 334289 can be divided by 86.

Step 1:
86 goes into 3 0 times with a remainder of 3.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 3 leaves us with 3.
Take the next digit (3) from the dividend and append it to 3, then repeat: 33 / 86

Step 2:
If we divide 33 by 86, we get 0 and a remainder of 33.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtracting 0 from 33 leaves us with 33.
Append the next digit (4) from the dividend to 33 and continue with: 334 / 86

On to step 3:
The number 86 fits into 334 3 times, leaving a remainder of 76.
Write down 3 as next digit of the result. 
Result so far: 3.0
If we take 258 away from 334, we end up with 76.
Take the next digit (2) from the dividend and append it to 76, then repeat: 762 / 86

On to step 4:
The number 86 fits into 762 8 times, leaving a remainder of 74.
Write down 8 as next digit of the result. 
Result so far: 38.0
Subtracting 688 from 762 leaves us with 74.
Take the next digit (8) from the dividend and append it to 74, then repeat: 748 / 86

Let's proceed to step 5:
When dividing 748 by 86, we get 8 with a remainder of 60.
Record the quotient 8 as the next digit in the result. 
Result so far: 388.0
Subtract 688 from 748 to get 60.
Take the next digit (9) from the dividend and append it to 60, then repeat: 609 / 86

Let's proceed to step 6:
The number 86 fits into 609 7 times, leaving a remainder of 7.
Record the quotient 7 as the next digit in the result. 
Result so far: 3887.0
If we subtract 602 from 609, we get 7.
Since there are no more digits in the dividend, we add a zero to the remainder making it 70, and continue the process.

On to step 7:
86 can be fit into 70 0 times, resulting in a remainder of 70.
Write down 0 as next digit of the result. 
Result so far: 3887.0
The remainder is 70 after subtracting 0 from 70.
Since there are no more digits in the dividend, we add a zero to the remainder making it 700, and continue the process.

Advancing to step 8:
When dividing 700 by 86, we get 8 with a remainder of 12.
Use 8 as the next digit of our solution. 
Result so far: 3887.08
If we subtract 688 from 700, we get 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

Advancing to step 9:
86 goes into 120 1 times with a remainder of 34.
Put 1 as the next digit of the answer. 
Result so far: 3887.081
Deduct 86 from 120 and we're left with 34.
Since there are no more digits in the dividend, we add a zero to the remainder making it 340, and continue the process.

Moving on to step 10:
When dividing 340 by 86, we get 3 with a remainder of 82.
Write down 3 as next digit of the result. 
Result so far: 3887.0813
If we take 258 away from 340, we end up with 82.
Since there are no more digits in the dividend, we add a zero to the remainder making it 820, and continue the process.

On to step 11:
When dividing 820 by 86, we get 9 with a remainder of 46.
The next digit of our result is 9. 
Result so far: 3887.08139
Subtract 774 from 820 to get 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 12:
86 goes into 460 5 times with a remainder of 30.
Write down 5 as next digit of the result. 
Result so far: 3887.081395
Deduct 430 from 460 and we're left with 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Going ahead to step 13:
When dividing 300 by 86, we get 3 with a remainder of 42.
Use 3 as the next digit of our solution. 
Result so far: 3887.0813953
Subtracting 258 from 300 leaves us 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 14:
The number 86 fits into 420 4 times, leaving a remainder of 76.
Write down 4 as next digit of the result. 
Result so far: 3887.08139534
The remainder is 76 after subtracting 344 from 420.
Since there are no more digits in the dividend, we add a zero to the remainder making it 760, and continue the process.

After the division, we end up with 3887.08139534 and a remainder of 7.6e-08.