123434 divided by 15 
We're looking to find how many times 15 goes into 123434.

On to step 1:
15 goes into 1 0 times with a remainder of 1.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 1 and we're left with 1.
Take the next digit (2) from the dividend and append it to 1, then repeat: 12 / 15

Moving on to step 2:
If we divide 12 by 15, we get 0 and a remainder of 12.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 12 and we're left with 12.
Include the next digit (3) from the dividend after 12, then repeat: 123 / 15

Moving on to step 3:
When dividing 123 by 15, we get 8 with a remainder of 3.
The next digit of our result is 8. 
Result so far: 8.0
If we subtract 120 from 123, we get 3.
Fetch the next digit (4) from the dividend, attach it to 3 and continue: 34 / 15

Going ahead to step 4:
34 divided by 15 is 2 with a remainder of 4.
Use 2 as the next digit of our solution. 
Result so far: 82.0
The remainder is 4 after subtracting 30 from 34.
Append the next digit (3) from the dividend to 4 and continue with: 43 / 15

Let's proceed to step 5:
43 divided by 15 is 2 with a remainder of 13.
The next digit of our result is 2. 
Result so far: 822.0
If we take 30 away from 43, we end up with 13.
Take the next digit (4) from the dividend and append it to 13, then repeat: 134 / 15

Advancing to step 6:
When dividing 134 by 15, we get 8 with a remainder of 14.
The number 8 becomes the next digit in our result. 
Result so far: 8228.0
If we take 120 away from 134, we end up with 14.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

Let's proceed to step 7:
140 divided by 15 is 9 with a remainder of 5.
The number 9 becomes the next digit in our result. 
Result so far: 8228.9
The remainder is 5 after subtracting 135 from 140.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

Going ahead to step 8:
15 goes into 50 3 times with a remainder of 5.
Use 3 as the next digit of our solution. 
Result so far: 8228.93
The remainder is 5 after subtracting 45 from 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

Let's proceed to step 9:
15 goes into 50 3 times with a remainder of 5.
Use 3 as the next digit of our solution. 
Result so far: 8228.933
Deduct 45 from 50 and we're left with 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

The quotient of the division is 8228.933, and the remainder is 0.0005.