86904910 divided by 309 
Let's see how many times 309 fits into 86904910.

Moving on to step 1:
If we divide 8 by 309, we get 0 and a remainder of 8.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 8 and we're left with 8.
Bring next digit (6) of the dividend behind the 8 and repeat the process: 86 / 309

On to step 2:
The number 309 fits into 86 0 times, leaving a remainder of 86.
The next digit of our result is 0. 
Result so far: 0.0
Subtract 0 from 86 to get 86.
Grab the next digit (9) from the dividend, add it to 86, then carry on: 869 / 309

Advancing to step 3:
869 divided by 309 is 2 with a remainder of 251.
Write down 2 as next digit of the result. 
Result so far: 2.0
If we take 618 away from 869, we end up with 251.
Take the next digit (0) from the dividend and append it to 251, then repeat: 2510 / 309

Let's proceed to step 4:
When dividing 2510 by 309, we get 8 with a remainder of 38.
Write down 8 as next digit of the result. 
Result so far: 28.0
Subtracting 2472 from 2510 leaves us with 38.
Include the next digit (4) from the dividend after 38, then repeat: 384 / 309

On to step 5:
When dividing 384 by 309, we get 1 with a remainder of 75.
Use 1 as the next digit of our solution. 
Result so far: 281.0
Deduct 309 from 384 and we're left with 75.
Bring next digit (9) of the dividend behind the 75 and repeat the process: 759 / 309

Step 6:
The number 309 fits into 759 2 times, leaving a remainder of 141.
The next digit of our result is 2. 
Result so far: 2812.0
The remainder is 141 after subtracting 618 from 759.
Bring next digit (1) of the dividend behind the 141 and repeat the process: 1411 / 309

Moving on to step 7:
If we divide 1411 by 309, we get 4 and a remainder of 175.
Write down 4 as next digit of the result. 
Result so far: 28124.0
Deduct 1236 from 1411 and we're left with 175.
Fetch the next digit (0) from the dividend, attach it to 175 and continue: 1750 / 309

On to step 8:
The number 309 fits into 1750 5 times, leaving a remainder of 205.
Record the quotient 5 as the next digit in the result. 
Result so far: 281245.0
Deduct 1545 from 1750 and we're left with 205.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2050, and continue the process.

On to step 9:
309 goes into 2050 6 times with a remainder of 196.
Write down 6 as next digit of the result. 
Result so far: 281245.6
Subtracting 1854 from 2050 leaves us with 196.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1960, and continue the process.

On to step 10:
The number 309 fits into 1960 6 times, leaving a remainder of 106.
Record the quotient 6 as the next digit in the result. 
Result so far: 281245.66
If we take 1854 away from 1960, we end up with 106.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1060, and continue the process.

After the division, we end up with 281245.66 and a remainder of 0.106.