905815 ÷ 12 
Let's see how many times 12 fits into 905815.

On to step 1:
9 divided by 12 is 0 with a remainder of 9.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtracting 0 from 9 leaves us with 9.
Fetch the next digit (0) from the dividend, attach it to 9 and continue: 90 / 12

On to step 2:
12 can be fit into 90 7 times, resulting in a remainder of 6.
The number 7 becomes the next digit in our result. 
Result so far: 7.0
If we take 84 away from 90, we end up with 6.
Take the next digit (5) from the dividend and append it to 6, then repeat: 65 / 12

Advancing to step 3:
If we divide 65 by 12, we get 5 and a remainder of 5.
Put 5 as the next digit of the answer. 
Result so far: 75.0
The remainder is 5 after subtracting 60 from 65.
Take the next digit (8) from the dividend and append it to 5, then repeat: 58 / 12

Step 4:
When dividing 58 by 12, we get 4 with a remainder of 10.
Use 4 as the next digit of our solution. 
Result so far: 754.0
Subtracting 48 from 58 leaves us with 10.
Take the next digit (1) from the dividend and append it to 10, then repeat: 101 / 12

Going ahead to step 5:
If we divide 101 by 12, we get 8 and a remainder of 5.
Use 8 as the next digit of our solution. 
Result so far: 7548.0
The remainder is 5 after subtracting 96 from 101.
Append the next digit (5) from the dividend to 5 and continue with: 55 / 12

Advancing to step 6:
12 goes into 55 4 times with a remainder of 7.
Record the quotient 4 as the next digit in the result. 
Result so far: 75484.0
If we subtract 48 from 55, 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.

Step 7:
The number 12 fits into 70 5 times, leaving a remainder of 10.
The next digit of our result is 5. 
Result so far: 75484.5
If we take 60 away from 70, 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.

Let's proceed to step 8:
If we divide 100 by 12, we get 8 and a remainder of 4.
The number 8 becomes the next digit in our result. 
Result so far: 75484.58
If we subtract 96 from 100, we get 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Step 9:
If we divide 40 by 12, we get 3 and a remainder of 4.
Record the quotient 3 as the next digit in the result. 
Result so far: 75484.583
Subtract 36 from 40 to get 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Moving on to step 10:
If we divide 40 by 12, we get 3 and a remainder of 4.
Record the quotient 3 as the next digit in the result. 
Result so far: 75484.5833
Subtract 36 from 40 to get 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

The final result is 75484.5833 with a remainder of 4e-05.