80193558 ÷ 561 
Let's see how many times 561 fits into 80193558.

Advancing to step 1:
561 goes into 8 0 times with a remainder of 8.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 8 after subtracting 0 from 8.
Take the next digit (0) from the dividend and append it to 8, then repeat: 80 / 561

Let's proceed to step 2:
When dividing 80 by 561, we get 0 with a remainder of 80.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 80, we get 80.
Grab the next digit (1) from the dividend, add it to 80, then carry on: 801 / 561

Step 3:
561 goes into 801 1 times with a remainder of 240.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
Subtracting 561 from 801 leaves us with 240.
Take the next digit (9) from the dividend and append it to 240, then repeat: 2409 / 561

Going ahead to step 4:
561 goes into 2409 4 times with a remainder of 165.
Write down 4 as next digit of the result. 
Result so far: 14.0
The remainder is 165 after subtracting 2244 from 2409.
Include the next digit (3) from the dividend after 165, then repeat: 1653 / 561

Let's proceed to step 5:
When dividing 1653 by 561, we get 2 with a remainder of 531.
Use 2 as the next digit of our solution. 
Result so far: 142.0
If we take 1122 away from 1653, we end up with 531.
Grab the next digit (5) from the dividend, add it to 531, then carry on: 5315 / 561

Moving on to step 6:
If we divide 5315 by 561, we get 9 and a remainder of 266.
The number 9 becomes the next digit in our result. 
Result so far: 1429.0
If we subtract 5049 from 5315, we get 266.
Take the next digit (5) from the dividend and append it to 266, then repeat: 2665 / 561

Step 7:
If we divide 2665 by 561, we get 4 and a remainder of 421.
Put 4 as the next digit of the answer. 
Result so far: 14294.0
Subtracting 2244 from 2665 leaves us with 421.
Fetch the next digit (8) from the dividend, attach it to 421 and continue: 4218 / 561

Moving on to step 8:
When dividing 4218 by 561, we get 7 with a remainder of 291.
Use 7 as the next digit of our solution. 
Result so far: 142947.0
The remainder is 291 after subtracting 3927 from 4218.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2910, and continue the process.

Going ahead to step 9:
561 can be fit into 2910 5 times, resulting in a remainder of 105.
The next digit of our result is 5. 
Result so far: 142947.5
If we subtract 2805 from 2910, we get 105.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1050, and continue the process.

Going ahead to step 10:
561 goes into 1050 1 times with a remainder of 489.
The next digit of our result is 1. 
Result so far: 142947.51
The remainder is 489 after subtracting 561 from 1050.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4890, and continue the process.

Advancing to step 11:
If we divide 4890 by 561, we get 8 and a remainder of 402.
Use 8 as the next digit of our solution. 
Result so far: 142947.518
Subtract 4488 from 4890 to get 402.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4020, and continue the process.

Step 12:
When dividing 4020 by 561, we get 7 with a remainder of 93.
Write down 7 as next digit of the result. 
Result so far: 142947.5187
If we subtract 3927 from 4020, we get 93.
Since there are no more digits in the dividend, we add a zero to the remainder making it 930, and continue the process.

Moving on to step 13:
If we divide 930 by 561, we get 1 and a remainder of 369.
The next digit of our result is 1. 
Result so far: 142947.51871
Deduct 561 from 930 and we're left with 369.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3690, and continue the process.

Going ahead to step 14:
561 goes into 3690 6 times with a remainder of 324.
The next digit of our result is 6. 
Result so far: 142947.518716
Subtract 3366 from 3690 to get 324.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3240, and continue the process.

Advancing to step 15:
3240 divided by 561 is 5 with a remainder of 435.
Put 5 as the next digit of the answer. 
Result so far: 142947.5187165
Subtract 2805 from 3240 to get 435.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4350, and continue the process.

Step 16:
If we divide 4350 by 561, we get 7 and a remainder of 423.
The number 7 becomes the next digit in our result. 
Result so far: 142947.51871657
If we subtract 3927 from 4350, we get 423.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4230, and continue the process.

After the division, we end up with 142947.51871657 and a remainder of 4.23e-07.