We look at the division of 23553674 by 15 
We're looking to find how many times 15 goes into 23553674.

Advancing to step 1:
When dividing 2 by 15, we get 0 with a remainder of 2.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 2 leaves us with 2.
Fetch the next digit (3) from the dividend, attach it to 2 and continue: 23 / 15

On to step 2:
If we divide 23 by 15, we get 1 and a remainder of 8.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
Subtracting 15 from 23 leaves us with 8.
Bring next digit (5) of the dividend behind the 8 and repeat the process: 85 / 15

Going ahead to step 3:
15 goes into 85 5 times with a remainder of 10.
The number 5 becomes the next digit in our result. 
Result so far: 15.0
Subtract 75 from 85 to get 10.
Take the next digit (5) from the dividend and append it to 10, then repeat: 105 / 15

Advancing to step 4:
105 divided by 15 is 7 with a remainder of 0.
The next digit of our result is 7. 
Result so far: 157.0
If we take 105 away from 105, we end up with 0.
Fetch the next digit (3) from the dividend, attach it to 0 and continue: 3 / 15

Going ahead to step 5:
15 goes into 3 0 times with a remainder of 3.
The number 0 becomes the next digit in our result. 
Result so far: 1570.0
If we subtract 0 from 3, we get 3.
Include the next digit (6) from the dividend after 3, then repeat: 36 / 15

On to step 6:
15 goes into 36 2 times with a remainder of 6.
Use 2 as the next digit of our solution. 
Result so far: 15702.0
If we subtract 30 from 36, we get 6.
Take the next digit (7) from the dividend and append it to 6, then repeat: 67 / 15

Advancing to step 7:
67 divided by 15 is 4 with a remainder of 7.
Use 4 as the next digit of our solution. 
Result so far: 157024.0
If we subtract 60 from 67, we get 7.
Bring next digit (4) of the dividend behind the 7 and repeat the process: 74 / 15

Advancing to step 8:
When dividing 74 by 15, we get 4 with a remainder of 14.
Use 4 as the next digit of our solution. 
Result so far: 1570244.0
Subtract 60 from 74 to get 14.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

Advancing to step 9:
When dividing 140 by 15, we get 9 with a remainder of 5.
The next digit of our result is 9. 
Result so far: 1570244.9
Subtracting 135 from 140 leaves us 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.

On to step 10:
When dividing 50 by 15, we get 3 with a remainder of 5.
The number 3 becomes the next digit in our result. 
Result so far: 1570244.93
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.

Step 11:
The number 15 fits into 50 3 times, leaving a remainder of 5.
The next digit of our result is 3. 
Result so far: 1570244.933
Subtracting 45 from 50 leaves us 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 final result is 1570244.933 with a remainder of 0.0005.