We divide 285290 by 86
We want to divide 285290 by 86.

Step 1:
86 can be fit into 2 0 times, resulting in a remainder of 2.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtracting 0 from 2 leaves us with 2.
Take the next digit (8) from the dividend and append it to 2, then repeat: 28 / 86

Step 2:
The number 86 fits into 28 0 times, leaving a remainder of 28.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 28, we end up with 28.
Fetch the next digit (5) from the dividend, attach it to 28 and continue: 285 / 86

Advancing to step 3:
When dividing 285 by 86, we get 3 with a remainder of 27.
Write down 3 as next digit of the result. 
Result so far: 3.0
Subtracting 258 from 285 leaves us with 27.
Bring next digit (2) of the dividend behind the 27 and repeat the process: 272 / 86

On to step 4:
The number 86 fits into 272 3 times, leaving a remainder of 14.
Use 3 as the next digit of our solution. 
Result so far: 33.0
If we take 258 away from 272, we end up with 14.
Grab the next digit (9) from the dividend, add it to 14, then carry on: 149 / 86

Step 5:
When dividing 149 by 86, we get 1 with a remainder of 63.
The next digit of our result is 1. 
Result so far: 331.0
If we subtract 86 from 149, we get 63.
Take the next digit (0) from the dividend and append it to 63, then repeat: 630 / 86

Advancing to step 6:
The number 86 fits into 630 7 times, leaving a remainder of 28.
The next digit of our result is 7. 
Result so far: 3317.0
Subtracting 602 from 630 leaves us with 28.
Since there are no more digits in the dividend, we add a zero to the remainder making it 280, and continue the process.

Advancing to step 7:
280 divided by 86 is 3 with a remainder of 22.
The next digit of our result is 3. 
Result so far: 3317.3
Deduct 258 from 280 and we're left with 22.
Since there are no more digits in the dividend, we add a zero to the remainder making it 220, and continue the process.

Let's proceed to step 8:
86 can be fit into 220 2 times, resulting in a remainder of 48.
Write down 2 as next digit of the result. 
Result so far: 3317.32
If we subtract 172 from 220, we get 48.
Since there are no more digits in the dividend, we add a zero to the remainder making it 480, and continue the process.

Advancing to step 9:
The number 86 fits into 480 5 times, leaving a remainder of 50.
Use 5 as the next digit of our solution. 
Result so far: 3317.325
Subtract 430 from 480 to get 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

Step 10:
500 divided by 86 is 5 with a remainder of 70.
The number 5 becomes the next digit in our result. 
Result so far: 3317.3255
The remainder is 70 after subtracting 430 from 500.
Since there are no more digits in the dividend, we add a zero to the remainder making it 700, and continue the process.

After the division, we end up with 3317.3255 and a remainder of 0.0007.