78991412 ÷ 566 
We want to figure out the number of times 78991412 can be divided by 566.

Let's proceed to step 1:
566 can be fit into 7 0 times, resulting in a remainder of 7.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 7 to get 7.
Take the next digit (8) from the dividend and append it to 7, then repeat: 78 / 566

Going ahead to step 2:
566 goes into 78 0 times with a remainder of 78.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 78 and we're left with 78.
Bring next digit (9) of the dividend behind the 78 and repeat the process: 789 / 566

Moving on to step 3:
566 can be fit into 789 1 times, resulting in a remainder of 223.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
If we take 566 away from 789, we end up with 223.
Bring next digit (9) of the dividend behind the 223 and repeat the process: 2239 / 566

Advancing to step 4:
The number 566 fits into 2239 3 times, leaving a remainder of 541.
The next digit of our result is 3. 
Result so far: 13.0
The remainder is 541 after subtracting 1698 from 2239.
Append the next digit (1) from the dividend to 541 and continue with: 5411 / 566

Let's proceed to step 5:
5411 divided by 566 is 9 with a remainder of 317.
Use 9 as the next digit of our solution. 
Result so far: 139.0
If we take 5094 away from 5411, we end up with 317.
Append the next digit (4) from the dividend to 317 and continue with: 3174 / 566

Step 6:
When dividing 3174 by 566, we get 5 with a remainder of 344.
Put 5 as the next digit of the answer. 
Result so far: 1395.0
Subtracting 2830 from 3174 leaves us with 344.
Include the next digit (1) from the dividend after 344, then repeat: 3441 / 566

Advancing to step 7:
The number 566 fits into 3441 6 times, leaving a remainder of 45.
Write down 6 as next digit of the result. 
Result so far: 13956.0
Subtracting 3396 from 3441 leaves us with 45.
Fetch the next digit (2) from the dividend, attach it to 45 and continue: 452 / 566

Advancing to step 8:
The number 566 fits into 452 0 times, leaving a remainder of 452.
Put 0 as the next digit of the answer. 
Result so far: 139560.0
The remainder is 452 after subtracting 0 from 452.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4520, and continue the process.

Let's proceed to step 9:
4520 divided by 566 is 7 with a remainder of 558.
Use 7 as the next digit of our solution. 
Result so far: 139560.7
Deduct 3962 from 4520 and we're left with 558.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5580, and continue the process.

Let's proceed to step 10:
566 can be fit into 5580 9 times, resulting in a remainder of 486.
Put 9 as the next digit of the answer. 
Result so far: 139560.79
If we subtract 5094 from 5580, we get 486.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4860, and continue the process.

On to step 11:
When dividing 4860 by 566, we get 8 with a remainder of 332.
Record the quotient 8 as the next digit in the result. 
Result so far: 139560.798
The remainder is 332 after subtracting 4528 from 4860.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3320, and continue the process.

Going ahead to step 12:
566 goes into 3320 5 times with a remainder of 490.
Use 5 as the next digit of our solution. 
Result so far: 139560.7985
If we subtract 2830 from 3320, we get 490.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4900, and continue the process.

Let's proceed to step 13:
When dividing 4900 by 566, we get 8 with a remainder of 372.
Use 8 as the next digit of our solution. 
Result so far: 139560.79858
Subtract 4528 from 4900 to get 372.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3720, and continue the process.

On to step 14:
566 goes into 3720 6 times with a remainder of 324.
The number 6 becomes the next digit in our result. 
Result so far: 139560.798586
Subtracting 3396 from 3720 leaves us with 324.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3240, and continue the process.

Going ahead to step 15:
The number 566 fits into 3240 5 times, leaving a remainder of 410.
The number 5 becomes the next digit in our result. 
Result so far: 139560.7985865
Subtracting 2830 from 3240 leaves us with 410.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4100, and continue the process.

Advancing to step 16:
When dividing 4100 by 566, we get 7 with a remainder of 138.
Use 7 as the next digit of our solution. 
Result so far: 139560.79858657
The remainder is 138 after subtracting 3962 from 4100.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1380, and continue the process.

The final result is 139560.79858657 with a remainder of 1.38e-07.