We look at the division of 904217 by 86 
Let's see how many times 86 fits into 904217.

Moving on to step 1:
86 can be fit into 9 0 times, resulting in a remainder of 9.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we subtract 0 from 9, we get 9.
Fetch the next digit (0) from the dividend, attach it to 9 and continue: 90 / 86

Advancing to step 2:
When dividing 90 by 86, we get 1 with a remainder of 4.
Write down 1 as next digit of the result. 
Result so far: 1.0
The remainder is 4 after subtracting 86 from 90.
Include the next digit (4) from the dividend after 4, then repeat: 44 / 86

Moving on to step 3:
86 can be fit into 44 0 times, resulting in a remainder of 44.
Record the quotient 0 as the next digit in the result. 
Result so far: 10.0
Deduct 0 from 44 and we're left with 44.
Take the next digit (2) from the dividend and append it to 44, then repeat: 442 / 86

On to step 4:
When dividing 442 by 86, we get 5 with a remainder of 12.
Put 5 as the next digit of the answer. 
Result so far: 105.0
Deduct 430 from 442 and we're left with 12.
Grab the next digit (1) from the dividend, add it to 12, then carry on: 121 / 86

Moving on to step 5:
The number 86 fits into 121 1 times, leaving a remainder of 35.
Use 1 as the next digit of our solution. 
Result so far: 1051.0
The remainder is 35 after subtracting 86 from 121.
Bring next digit (7) of the dividend behind the 35 and repeat the process: 357 / 86

Moving on to step 6:
357 divided by 86 is 4 with a remainder of 13.
Write down 4 as next digit of the result. 
Result so far: 10514.0
If we take 344 away from 357, we end up with 13.
Since there are no more digits in the dividend, we add a zero to the remainder making it 130, and continue the process.

Advancing to step 7:
130 divided by 86 is 1 with a remainder of 44.
The number 1 becomes the next digit in our result. 
Result so far: 10514.1
Subtract 86 from 130 to get 44.
Since there are no more digits in the dividend, we add a zero to the remainder making it 440, and continue the process.

On to step 8:
The number 86 fits into 440 5 times, leaving a remainder of 10.
Put 5 as the next digit of the answer. 
Result so far: 10514.15
If we take 430 away from 440, we end up with 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Going ahead to step 9:
86 goes into 100 1 times with a remainder of 14.
Write down 1 as next digit of the result. 
Result so far: 10514.151
The remainder is 14 after subtracting 86 from 100.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

Moving on to step 10:
140 divided by 86 is 1 with a remainder of 54.
The number 1 becomes the next digit in our result. 
Result so far: 10514.1511
If we take 86 away from 140, we end up with 54.
Since there are no more digits in the dividend, we add a zero to the remainder making it 540, and continue the process.

In conclusion, the division gives 10514.1511 with a balance of 0.00054.