90309178 ÷ 566 
We want to figure out the number of times 90309178 can be divided by 566.

Step 1:
When dividing 9 by 566, we get 0 with a remainder of 9.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 9 to get 9.
Fetch the next digit (0) from the dividend, attach it to 9 and continue: 90 / 566

Advancing to step 2:
90 divided by 566 is 0 with a remainder of 90.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 90 after subtracting 0 from 90.
Grab the next digit (3) from the dividend, add it to 90, then carry on: 903 / 566

Let's proceed to step 3:
566 goes into 903 1 times with a remainder of 337.
Write down 1 as next digit of the result. 
Result so far: 1.0
Deduct 566 from 903 and we're left with 337.
Include the next digit (0) from the dividend after 337, then repeat: 3370 / 566

On to step 4:
566 can be fit into 3370 5 times, resulting in a remainder of 540.
Use 5 as the next digit of our solution. 
Result so far: 15.0
If we take 2830 away from 3370, we end up with 540.
Include the next digit (9) from the dividend after 540, then repeat: 5409 / 566

Moving on to step 5:
The number 566 fits into 5409 9 times, leaving a remainder of 315.
Write down 9 as next digit of the result. 
Result so far: 159.0
If we take 5094 away from 5409, we end up with 315.
Grab the next digit (1) from the dividend, add it to 315, then carry on: 3151 / 566

Let's proceed to step 6:
3151 divided by 566 is 5 with a remainder of 321.
The number 5 becomes the next digit in our result. 
Result so far: 1595.0
The remainder is 321 after subtracting 2830 from 3151.
Take the next digit (7) from the dividend and append it to 321, then repeat: 3217 / 566

Moving on to step 7:
When dividing 3217 by 566, we get 5 with a remainder of 387.
Record the quotient 5 as the next digit in the result. 
Result so far: 15955.0
Subtract 2830 from 3217 to get 387.
Fetch the next digit (8) from the dividend, attach it to 387 and continue: 3878 / 566

On to step 8:
566 can be fit into 3878 6 times, resulting in a remainder of 482.
The number 6 becomes the next digit in our result. 
Result so far: 159556.0
If we subtract 3396 from 3878, we get 482.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4820, and continue the process.

Going ahead to step 9:
The number 566 fits into 4820 8 times, leaving a remainder of 292.
Write down 8 as next digit of the result. 
Result so far: 159556.8
The remainder is 292 after subtracting 4528 from 4820.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2920, and continue the process.

Going ahead to step 10:
566 goes into 2920 5 times with a remainder of 90.
Use 5 as the next digit of our solution. 
Result so far: 159556.85
Subtract 2830 from 2920 to get 90.
Since there are no more digits in the dividend, we add a zero to the remainder making it 900, and continue the process.

Step 11:
If we divide 900 by 566, we get 1 and a remainder of 334.
The number 1 becomes the next digit in our result. 
Result so far: 159556.851
The remainder is 334 after subtracting 566 from 900.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3340, and continue the process.

On to step 12:
566 goes into 3340 5 times with a remainder of 510.
Write down 5 as next digit of the result. 
Result so far: 159556.8515
Subtracting 2830 from 3340 leaves us with 510.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5100, and continue the process.

Let's proceed to step 13:
The number 566 fits into 5100 9 times, leaving a remainder of 6.
The next digit of our result is 9. 
Result so far: 159556.85159
Deduct 5094 from 5100 and we're left with 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Going ahead to step 14:
The number 566 fits into 60 0 times, leaving a remainder of 60.
Write down 0 as next digit of the result. 
Result so far: 159556.85159
If we subtract 0 from 60, we get 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

Going ahead to step 15:
566 goes into 600 1 times with a remainder of 34.
Write down 1 as next digit of the result. 
Result so far: 159556.8515901
Deduct 566 from 600 and we're left with 34.
Since there are no more digits in the dividend, we add a zero to the remainder making it 340, and continue the process.

Going ahead to step 16:
566 can be fit into 340 0 times, resulting in a remainder of 340.
Write down 0 as next digit of the result. 
Result so far: 159556.8515901
Subtract 0 from 340 to get 340.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3400, and continue the process.

In conclusion, the division gives 159556.8515901 with a balance of 3.4e-07.