15661505 divided by 45 
We want to figure out the number of times 15661505 can be divided by 45.

Going ahead to step 1:
The number 45 fits into 1 0 times, leaving a remainder of 1.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 1 after subtracting 0 from 1.
Bring next digit (5) of the dividend behind the 1 and repeat the process: 15 / 45

Step 2:
15 divided by 45 is 0 with a remainder of 15.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 15 after subtracting 0 from 15.
Take the next digit (6) from the dividend and append it to 15, then repeat: 156 / 45

Advancing to step 3:
If we divide 156 by 45, we get 3 and a remainder of 21.
The next digit of our result is 3. 
Result so far: 3.0
If we take 135 away from 156, we end up with 21.
Fetch the next digit (6) from the dividend, attach it to 21 and continue: 216 / 45

Step 4:
When dividing 216 by 45, we get 4 with a remainder of 36.
The next digit of our result is 4. 
Result so far: 34.0
If we take 180 away from 216, we end up with 36.
Bring next digit (1) of the dividend behind the 36 and repeat the process: 361 / 45

Step 5:
The number 45 fits into 361 8 times, leaving a remainder of 1.
Use 8 as the next digit of our solution. 
Result so far: 348.0
Subtracting 360 from 361 leaves us with 1.
Append the next digit (5) from the dividend to 1 and continue with: 15 / 45

Step 6:
15 divided by 45 is 0 with a remainder of 15.
Use 0 as the next digit of our solution. 
Result so far: 3480.0
If we take 0 away from 15, we end up with 15.
Take the next digit (0) from the dividend and append it to 15, then repeat: 150 / 45

Let's proceed to step 7:
When dividing 150 by 45, we get 3 with a remainder of 15.
Record the quotient 3 as the next digit in the result. 
Result so far: 34803.0
If we take 135 away from 150, we end up with 15.
Grab the next digit (5) from the dividend, add it to 15, then carry on: 155 / 45

Going ahead to step 8:
45 can be fit into 155 3 times, resulting in a remainder of 20.
Write down 3 as next digit of the result. 
Result so far: 348033.0
The remainder is 20 after subtracting 135 from 155.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Going ahead to step 9:
200 divided by 45 is 4 with a remainder of 20.
Write down 4 as next digit of the result. 
Result so far: 348033.4
If we take 180 away from 200, we end up with 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Advancing to step 10:
45 can be fit into 200 4 times, resulting in a remainder of 20.
Use 4 as the next digit of our solution. 
Result so far: 348033.44
If we take 180 away from 200, we end up with 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

The final result is 348033.44 with a remainder of 0.02.