15320143 ÷ 561 
We want to figure out the number of times 15320143 can be divided by 561.

Advancing to step 1:
1 divided by 561 is 0 with a remainder of 1.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 1 after subtracting 0 from 1.
Fetch the next digit (5) from the dividend, attach it to 1 and continue: 15 / 561

Let's proceed to step 2:
When dividing 15 by 561, we get 0 with a remainder of 15.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 15 and we're left with 15.
Include the next digit (3) from the dividend after 15, then repeat: 153 / 561

On to step 3:
561 can be fit into 153 0 times, resulting in a remainder of 153.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 153 after subtracting 0 from 153.
Grab the next digit (2) from the dividend, add it to 153, then carry on: 1532 / 561

Advancing to step 4:
If we divide 1532 by 561, we get 2 and a remainder of 410.
Put 2 as the next digit of the answer. 
Result so far: 2.0
The remainder is 410 after subtracting 1122 from 1532.
Append the next digit (0) from the dividend to 410 and continue with: 4100 / 561

Advancing to step 5:
561 goes into 4100 7 times with a remainder of 173.
The number 7 becomes the next digit in our result. 
Result so far: 27.0
Subtract 3927 from 4100 to get 173.
Take the next digit (1) from the dividend and append it to 173, then repeat: 1731 / 561

On to step 6:
1731 divided by 561 is 3 with a remainder of 48.
The number 3 becomes the next digit in our result. 
Result so far: 273.0
Deduct 1683 from 1731 and we're left with 48.
Bring next digit (4) of the dividend behind the 48 and repeat the process: 484 / 561

Step 7:
484 divided by 561 is 0 with a remainder of 484.
Record the quotient 0 as the next digit in the result. 
Result so far: 2730.0
Subtracting 0 from 484 leaves us with 484.
Bring next digit (3) of the dividend behind the 484 and repeat the process: 4843 / 561

Step 8:
4843 divided by 561 is 8 with a remainder of 355.
Write down 8 as next digit of the result. 
Result so far: 27308.0
If we take 4488 away from 4843, we end up with 355.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3550, and continue the process.

Going ahead to step 9:
3550 divided by 561 is 6 with a remainder of 184.
Use 6 as the next digit of our solution. 
Result so far: 27308.6
Subtract 3366 from 3550 to get 184.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1840, and continue the process.

Moving on to step 10:
561 goes into 1840 3 times with a remainder of 157.
Record the quotient 3 as the next digit in the result. 
Result so far: 27308.63
Subtract 1683 from 1840 to get 157.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1570, and continue the process.

Advancing to step 11:
1570 divided by 561 is 2 with a remainder of 448.
The number 2 becomes the next digit in our result. 
Result so far: 27308.632
If we subtract 1122 from 1570, we get 448.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4480, and continue the process.

Going ahead to step 12:
When dividing 4480 by 561, we get 7 with a remainder of 553.
Record the quotient 7 as the next digit in the result. 
Result so far: 27308.6327
Subtracting 3927 from 4480 leaves us with 553.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5530, and continue the process.

Step 13:
When dividing 5530 by 561, we get 9 with a remainder of 481.
The next digit of our result is 9. 
Result so far: 27308.63279
Deduct 5049 from 5530 and we're left with 481.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4810, and continue the process.

On to step 14:
The number 561 fits into 4810 8 times, leaving a remainder of 322.
The number 8 becomes the next digit in our result. 
Result so far: 27308.632798
If we subtract 4488 from 4810, we get 322.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3220, and continue the process.

On to step 15:
561 can be fit into 3220 5 times, resulting in a remainder of 415.
The number 5 becomes the next digit in our result. 
Result so far: 27308.6327985
Deduct 2805 from 3220 and we're left with 415.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4150, and continue the process.

Going ahead to step 16:
561 can be fit into 4150 7 times, resulting in a remainder of 223.
Use 7 as the next digit of our solution. 
Result so far: 27308.63279857
The remainder is 223 after subtracting 3927 from 4150.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2230, and continue the process.

The final result is 27308.63279857 with a remainder of 2.23e-07.