We look at the division of 80378694 by 561 
Let's see how many times 561 fits into 80378694.

Going ahead to step 1:
8 divided by 561 is 0 with a remainder of 8.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 8, we get 8.
Append the next digit (0) from the dividend to 8 and continue with: 80 / 561

Let's proceed to step 2:
561 goes into 80 0 times with a remainder of 80.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 80 and we're left with 80.
Grab the next digit (3) from the dividend, add it to 80, then carry on: 803 / 561

Moving on to step 3:
561 goes into 803 1 times with a remainder of 242.
Put 1 as the next digit of the answer. 
Result so far: 1.0
If we take 561 away from 803, we end up with 242.
Fetch the next digit (7) from the dividend, attach it to 242 and continue: 2427 / 561

On to step 4:
If we divide 2427 by 561, we get 4 and a remainder of 183.
Use 4 as the next digit of our solution. 
Result so far: 14.0
Subtract 2244 from 2427 to get 183.
Include the next digit (8) from the dividend after 183, then repeat: 1838 / 561

Let's proceed to step 5:
If we divide 1838 by 561, we get 3 and a remainder of 155.
Use 3 as the next digit of our solution. 
Result so far: 143.0
Deduct 1683 from 1838 and we're left with 155.
Bring next digit (6) of the dividend behind the 155 and repeat the process: 1556 / 561

Moving on to step 6:
561 can be fit into 1556 2 times, resulting in a remainder of 434.
Use 2 as the next digit of our solution. 
Result so far: 1432.0
The remainder is 434 after subtracting 1122 from 1556.
Fetch the next digit (9) from the dividend, attach it to 434 and continue: 4349 / 561

On to step 7:
561 can be fit into 4349 7 times, resulting in a remainder of 422.
Write down 7 as next digit of the result. 
Result so far: 14327.0
If we take 3927 away from 4349, we end up with 422.
Fetch the next digit (4) from the dividend, attach it to 422 and continue: 4224 / 561

Step 8:
If we divide 4224 by 561, we get 7 and a remainder of 297.
Use 7 as the next digit of our solution. 
Result so far: 143277.0
Deduct 3927 from 4224 and we're left with 297.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2970, and continue the process.

Let's proceed to step 9:
The number 561 fits into 2970 5 times, leaving a remainder of 165.
Use 5 as the next digit of our solution. 
Result so far: 143277.5
If we take 2805 away from 2970, we end up with 165.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1650, and continue the process.

Going ahead to step 10:
When dividing 1650 by 561, we get 2 with a remainder of 528.
Record the quotient 2 as the next digit in the result. 
Result so far: 143277.52
Subtract 1122 from 1650 to get 528.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5280, and continue the process.

Going ahead to step 11:
561 goes into 5280 9 times with a remainder of 231.
Use 9 as the next digit of our solution. 
Result so far: 143277.529
The remainder is 231 after subtracting 5049 from 5280.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2310, and continue the process.

Let's proceed to step 12:
2310 divided by 561 is 4 with a remainder of 66.
The next digit of our result is 4. 
Result so far: 143277.5294
Deduct 2244 from 2310 and we're left with 66.
Since there are no more digits in the dividend, we add a zero to the remainder making it 660, and continue the process.

Step 13:
660 divided by 561 is 1 with a remainder of 99.
Record the quotient 1 as the next digit in the result. 
Result so far: 143277.52941
The remainder is 99 after subtracting 561 from 660.
Since there are no more digits in the dividend, we add a zero to the remainder making it 990, and continue the process.

On to step 14:
990 divided by 561 is 1 with a remainder of 429.
The number 1 becomes the next digit in our result. 
Result so far: 143277.529411
Deduct 561 from 990 and we're left with 429.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4290, and continue the process.

Our division results in 143277.529411 with a remaining 4.29e-05.