Let's divide 80717778 by 561
We're looking to find how many times 561 goes into 80717778.

On to step 1:
8 divided by 561 is 0 with a remainder of 8.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 8 after subtracting 0 from 8.
Bring next digit (0) of the dividend behind the 8 and repeat the process: 80 / 561

Moving on to step 2:
The number 561 fits into 80 0 times, leaving a remainder of 80.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 80, we end up with 80.
Take the next digit (7) from the dividend and append it to 80, then repeat: 807 / 561

On to step 3:
When dividing 807 by 561, we get 1 with a remainder of 246.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
The remainder is 246 after subtracting 561 from 807.
Fetch the next digit (1) from the dividend, attach it to 246 and continue: 2461 / 561

Let's proceed to step 4:
2461 divided by 561 is 4 with a remainder of 217.
Put 4 as the next digit of the answer. 
Result so far: 14.0
If we subtract 2244 from 2461, we get 217.
Grab the next digit (7) from the dividend, add it to 217, then carry on: 2177 / 561

Step 5:
When dividing 2177 by 561, we get 3 with a remainder of 494.
Put 3 as the next digit of the answer. 
Result so far: 143.0
Subtract 1683 from 2177 to get 494.
Take the next digit (7) from the dividend and append it to 494, then repeat: 4947 / 561

On to step 6:
561 can be fit into 4947 8 times, resulting in a remainder of 459.
Put 8 as the next digit of the answer. 
Result so far: 1438.0
Deduct 4488 from 4947 and we're left with 459.
Bring next digit (7) of the dividend behind the 459 and repeat the process: 4597 / 561

On to step 7:
The number 561 fits into 4597 8 times, leaving a remainder of 109.
The number 8 becomes the next digit in our result. 
Result so far: 14388.0
If we take 4488 away from 4597, we end up with 109.
Append the next digit (8) from the dividend to 109 and continue with: 1098 / 561

Going ahead to step 8:
When dividing 1098 by 561, we get 1 with a remainder of 537.
Use 1 as the next digit of our solution. 
Result so far: 143881.0
If we take 561 away from 1098, we end up with 537.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5370, and continue the process.

On to step 9:
When dividing 5370 by 561, we get 9 with a remainder of 321.
The number 9 becomes the next digit in our result. 
Result so far: 143881.9
If we take 5049 away from 5370, we end up with 321.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3210, and continue the process.

Let's proceed to step 10:
The number 561 fits into 3210 5 times, leaving a remainder of 405.
The number 5 becomes the next digit in our result. 
Result so far: 143881.95
Deduct 2805 from 3210 and we're left with 405.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4050, and continue the process.

Advancing to step 11:
If we divide 4050 by 561, we get 7 and a remainder of 123.
The next digit of our result is 7. 
Result so far: 143881.957
If we subtract 3927 from 4050, we get 123.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1230, and continue the process.

On to step 12:
When dividing 1230 by 561, we get 2 with a remainder of 108.
The number 2 becomes the next digit in our result. 
Result so far: 143881.9572
If we take 1122 away from 1230, we end up with 108.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1080, and continue the process.

Let's proceed to step 13:
561 can be fit into 1080 1 times, resulting in a remainder of 519.
The next digit of our result is 1. 
Result so far: 143881.95721
If we take 561 away from 1080, we end up with 519.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5190, and continue the process.

On to step 14:
561 can be fit into 5190 9 times, resulting in a remainder of 141.
The next digit of our result is 9. 
Result so far: 143881.957219
Subtracting 5049 from 5190 leaves us with 141.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1410, and continue the process.

Moving on to step 15:
If we divide 1410 by 561, we get 2 and a remainder of 288.
Put 2 as the next digit of the answer. 
Result so far: 143881.9572192
Deduct 1122 from 1410 and we're left with 288.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2880, and continue the process.

Step 16:
561 goes into 2880 5 times with a remainder of 75.
Put 5 as the next digit of the answer. 
Result so far: 143881.95721925
If we subtract 2805 from 2880, we get 75.
Since there are no more digits in the dividend, we add a zero to the remainder making it 750, and continue the process.

After the division, we end up with 143881.95721925 and a remainder of 7.5e-08.