We're dividing 28690078 by 561 
We want to figure out the number of times 28690078 can be divided by 561.

On to step 1:
When dividing 2 by 561, we get 0 with a remainder of 2.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 2 after subtracting 0 from 2.
Grab the next digit (8) from the dividend, add it to 2, then carry on: 28 / 561

Advancing to step 2:
561 can be fit into 28 0 times, resulting in a remainder of 28.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 28 and we're left with 28.
Append the next digit (6) from the dividend to 28 and continue with: 286 / 561

Moving on to step 3:
561 goes into 286 0 times with a remainder of 286.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 286 leaves us with 286.
Include the next digit (9) from the dividend after 286, then repeat: 2869 / 561

Let's proceed to step 4:
2869 divided by 561 is 5 with a remainder of 64.
Use 5 as the next digit of our solution. 
Result so far: 5.0
If we subtract 2805 from 2869, we get 64.
Fetch the next digit (0) from the dividend, attach it to 64 and continue: 640 / 561

Going ahead to step 5:
640 divided by 561 is 1 with a remainder of 79.
Record the quotient 1 as the next digit in the result. 
Result so far: 51.0
If we subtract 561 from 640, we get 79.
Bring next digit (0) of the dividend behind the 79 and repeat the process: 790 / 561

On to step 6:
790 divided by 561 is 1 with a remainder of 229.
Record the quotient 1 as the next digit in the result. 
Result so far: 511.0
The remainder is 229 after subtracting 561 from 790.
Bring next digit (7) of the dividend behind the 229 and repeat the process: 2297 / 561

Going ahead to step 7:
561 can be fit into 2297 4 times, resulting in a remainder of 53.
Record the quotient 4 as the next digit in the result. 
Result so far: 5114.0
The remainder is 53 after subtracting 2244 from 2297.
Include the next digit (8) from the dividend after 53, then repeat: 538 / 561

Let's proceed to step 8:
If we divide 538 by 561, we get 0 and a remainder of 538.
Use 0 as the next digit of our solution. 
Result so far: 51140.0
Subtract 0 from 538 to get 538.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5380, and continue the process.

Moving on to step 9:
5380 divided by 561 is 9 with a remainder of 331.
The next digit of our result is 9. 
Result so far: 51140.9
If we take 5049 away from 5380, we end up with 331.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3310, and continue the process.

On to step 10:
If we divide 3310 by 561, we get 5 and a remainder of 505.
The next digit of our result is 5. 
Result so far: 51140.95
Subtracting 2805 from 3310 leaves us with 505.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5050, and continue the process.

Moving on to step 11:
561 goes into 5050 9 times with a remainder of 1.
Use 9 as the next digit of our solution. 
Result so far: 51140.959
The remainder is 1 after subtracting 5049 from 5050.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

Moving on to step 12:
If we divide 10 by 561, we get 0 and a remainder of 10.
The next digit of our result is 0. 
Result so far: 51140.959
The remainder is 10 after subtracting 0 from 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

On to step 13:
If we divide 100 by 561, we get 0 and a remainder of 100.
Record the quotient 0 as the next digit in the result. 
Result so far: 51140.959
Subtract 0 from 100 to get 100.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1000, and continue the process.

After the division, we end up with 51140.959 and a remainder of 0.0001.