661101 divided by 15 
We're looking to find how many times 15 goes into 661101.

Step 1:
15 can be fit into 6 0 times, resulting in a remainder of 6.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 6, we get 6.
Include the next digit (6) from the dividend after 6, then repeat: 66 / 15

Moving on to step 2:
When dividing 66 by 15, we get 4 with a remainder of 6.
Put 4 as the next digit of the answer. 
Result so far: 4.0
If we take 60 away from 66, we end up with 6.
Fetch the next digit (1) from the dividend, attach it to 6 and continue: 61 / 15

On to step 3:
If we divide 61 by 15, we get 4 and a remainder of 1.
Write down 4 as next digit of the result. 
Result so far: 44.0
Subtracting 60 from 61 leaves us with 1.
Grab the next digit (1) from the dividend, add it to 1, then carry on: 11 / 15

Going ahead to step 4:
The number 15 fits into 11 0 times, leaving a remainder of 11.
The number 0 becomes the next digit in our result. 
Result so far: 440.0
Subtract 0 from 11 to get 11.
Take the next digit (0) from the dividend and append it to 11, then repeat: 110 / 15

Going ahead to step 5:
15 goes into 110 7 times with a remainder of 5.
The next digit of our result is 7. 
Result so far: 4407.0
If we subtract 105 from 110, we get 5.
Append the next digit (1) from the dividend to 5 and continue with: 51 / 15

Moving on to step 6:
The number 15 fits into 51 3 times, leaving a remainder of 6.
Write down 3 as next digit of the result. 
Result so far: 44073.0
If we take 45 away from 51, we end up with 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Let's proceed to step 7:
When dividing 60 by 15, we get 4 with a remainder of 0.
Use 4 as the next digit of our solution. 
Result so far: 44073.4
If we subtract 60 from 60, we get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Step 8:
15 can be fit into 0 0 times, resulting in a remainder of 0.
Use 0 as the next digit of our solution. 
Result so far: 44073.4
Subtracting 0 from 0 leaves us with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Going ahead to step 9:
15 goes into 0 0 times with a remainder of 0.
The next digit of our result is 0. 
Result so far: 44073.4
If we take 0 away from 0, we end up with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

The final outcome is 44073.4, with a leftover of 0.0.