76575899 ÷ 858 
We want to figure out the number of times 76575899 can be divided by 858.

Let's proceed to step 1:
858 can be fit into 7 0 times, resulting in a remainder of 7.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 7, we get 7.
Fetch the next digit (6) from the dividend, attach it to 7 and continue: 76 / 858

On to step 2:
If we divide 76 by 858, we get 0 and a remainder of 76.
The next digit of our result is 0. 
Result so far: 0.0
Subtracting 0 from 76 leaves us with 76.
Fetch the next digit (5) from the dividend, attach it to 76 and continue: 765 / 858

Going ahead to step 3:
The number 858 fits into 765 0 times, leaving a remainder of 765.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 765, we get 765.
Take the next digit (7) from the dividend and append it to 765, then repeat: 7657 / 858

Step 4:
858 goes into 7657 8 times with a remainder of 793.
Record the quotient 8 as the next digit in the result. 
Result so far: 8.0
If we subtract 6864 from 7657, we get 793.
Append the next digit (5) from the dividend to 793 and continue with: 7935 / 858

Advancing to step 5:
When dividing 7935 by 858, we get 9 with a remainder of 213.
Write down 9 as next digit of the result. 
Result so far: 89.0
Deduct 7722 from 7935 and we're left with 213.
Bring next digit (8) of the dividend behind the 213 and repeat the process: 2138 / 858

Step 6:
The number 858 fits into 2138 2 times, leaving a remainder of 422.
Use 2 as the next digit of our solution. 
Result so far: 892.0
If we subtract 1716 from 2138, we get 422.
Append the next digit (9) from the dividend to 422 and continue with: 4229 / 858

Going ahead to step 7:
The number 858 fits into 4229 4 times, leaving a remainder of 797.
The next digit of our result is 4. 
Result so far: 8924.0
If we take 3432 away from 4229, we end up with 797.
Bring next digit (9) of the dividend behind the 797 and repeat the process: 7979 / 858

On to step 8:
858 goes into 7979 9 times with a remainder of 257.
Put 9 as the next digit of the answer. 
Result so far: 89249.0
If we subtract 7722 from 7979, we get 257.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2570, and continue the process.

Moving on to step 9:
858 can be fit into 2570 2 times, resulting in a remainder of 854.
Record the quotient 2 as the next digit in the result. 
Result so far: 89249.2
The remainder is 854 after subtracting 1716 from 2570.
Since there are no more digits in the dividend, we add a zero to the remainder making it 8540, and continue the process.

Going ahead to step 10:
When dividing 8540 by 858, we get 9 with a remainder of 818.
Use 9 as the next digit of our solution. 
Result so far: 89249.29
Subtracting 7722 from 8540 leaves us with 818.
Since there are no more digits in the dividend, we add a zero to the remainder making it 8180, and continue the process.

Let's proceed to step 11:
8180 divided by 858 is 9 with a remainder of 458.
Write down 9 as next digit of the result. 
Result so far: 89249.299
Subtracting 7722 from 8180 leaves us with 458.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4580, and continue the process.

After the division, we end up with 89249.299 and a remainder of 0.0458.