99666577 divided by 526 
We want to figure out the number of times 99666577 can be divided by 526.

Let's proceed to step 1:
526 goes into 9 0 times with a remainder of 9.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 9 and we're left with 9.
Include the next digit (9) from the dividend after 9, then repeat: 99 / 526

Moving on to step 2:
526 can be fit into 99 0 times, resulting in a remainder of 99.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 99 to get 99.
Append the next digit (6) from the dividend to 99 and continue with: 996 / 526

Going ahead to step 3:
526 can be fit into 996 1 times, resulting in a remainder of 470.
Write down 1 as next digit of the result. 
Result so far: 1.0
If we subtract 526 from 996, we get 470.
Include the next digit (6) from the dividend after 470, then repeat: 4706 / 526

Step 4:
526 can be fit into 4706 8 times, resulting in a remainder of 498.
Use 8 as the next digit of our solution. 
Result so far: 18.0
Deduct 4208 from 4706 and we're left with 498.
Include the next digit (6) from the dividend after 498, then repeat: 4986 / 526

Going ahead to step 5:
4986 divided by 526 is 9 with a remainder of 252.
Write down 9 as next digit of the result. 
Result so far: 189.0
If we subtract 4734 from 4986, we get 252.
Grab the next digit (5) from the dividend, add it to 252, then carry on: 2525 / 526

Advancing to step 6:
526 goes into 2525 4 times with a remainder of 421.
Put 4 as the next digit of the answer. 
Result so far: 1894.0
Deduct 2104 from 2525 and we're left with 421.
Include the next digit (7) from the dividend after 421, then repeat: 4217 / 526

Moving on to step 7:
526 can be fit into 4217 8 times, resulting in a remainder of 9.
The number 8 becomes the next digit in our result. 
Result so far: 18948.0
If we subtract 4208 from 4217, we get 9.
Bring next digit (7) of the dividend behind the 9 and repeat the process: 97 / 526

Let's proceed to step 8:
If we divide 97 by 526, we get 0 and a remainder of 97.
The next digit of our result is 0. 
Result so far: 189480.0
Subtracting 0 from 97 leaves us with 97.
Since there are no more digits in the dividend, we add a zero to the remainder making it 970, and continue the process.

Advancing to step 9:
526 goes into 970 1 times with a remainder of 444.
Write down 1 as next digit of the result. 
Result so far: 189480.1
Subtracting 526 from 970 leaves us with 444.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4440, and continue the process.

Let's proceed to step 10:
4440 divided by 526 is 8 with a remainder of 232.
Put 8 as the next digit of the answer. 
Result so far: 189480.18
Subtracting 4208 from 4440 leaves us with 232.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2320, and continue the process.

On to step 11:
If we divide 2320 by 526, we get 4 and a remainder of 216.
Put 4 as the next digit of the answer. 
Result so far: 189480.184
Subtract 2104 from 2320 to get 216.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2160, and continue the process.

Advancing to step 12:
When dividing 2160 by 526, we get 4 with a remainder of 56.
Write down 4 as next digit of the result. 
Result so far: 189480.1844
Subtract 2104 from 2160 to get 56.
Since there are no more digits in the dividend, we add a zero to the remainder making it 560, and continue the process.

In conclusion, the division gives 189480.1844 with a balance of 0.00056.