25175342 divided by 858 
We want to figure out the number of times 25175342 can be divided by 858.

Let's proceed to step 1:
858 can be fit into 2 0 times, resulting in a remainder of 2.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 2 and we're left with 2.
Take the next digit (5) from the dividend and append it to 2, then repeat: 25 / 858

On to step 2:
858 can be fit into 25 0 times, resulting in a remainder of 25.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 25 and we're left with 25.
Include the next digit (1) from the dividend after 25, then repeat: 251 / 858

Let's proceed to step 3:
If we divide 251 by 858, we get 0 and a remainder of 251.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 251 leaves us with 251.
Fetch the next digit (7) from the dividend, attach it to 251 and continue: 2517 / 858

Advancing to step 4:
858 goes into 2517 2 times with a remainder of 801.
The number 2 becomes the next digit in our result. 
Result so far: 2.0
Deduct 1716 from 2517 and we're left with 801.
Append the next digit (5) from the dividend to 801 and continue with: 8015 / 858

Moving on to step 5:
If we divide 8015 by 858, we get 9 and a remainder of 293.
Write down 9 as next digit of the result. 
Result so far: 29.0
If we take 7722 away from 8015, we end up with 293.
Fetch the next digit (3) from the dividend, attach it to 293 and continue: 2933 / 858

Going ahead to step 6:
When dividing 2933 by 858, we get 3 with a remainder of 359.
Record the quotient 3 as the next digit in the result. 
Result so far: 293.0
The remainder is 359 after subtracting 2574 from 2933.
Take the next digit (4) from the dividend and append it to 359, then repeat: 3594 / 858

On to step 7:
The number 858 fits into 3594 4 times, leaving a remainder of 162.
Write down 4 as next digit of the result. 
Result so far: 2934.0
The remainder is 162 after subtracting 3432 from 3594.
Include the next digit (2) from the dividend after 162, then repeat: 1622 / 858

Going ahead to step 8:
If we divide 1622 by 858, we get 1 and a remainder of 764.
Put 1 as the next digit of the answer. 
Result so far: 29341.0
The remainder is 764 after subtracting 858 from 1622.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7640, and continue the process.

Step 9:
When dividing 7640 by 858, we get 8 with a remainder of 776.
Put 8 as the next digit of the answer. 
Result so far: 29341.8
The remainder is 776 after subtracting 6864 from 7640.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7760, and continue the process.

Going ahead to step 10:
858 can be fit into 7760 9 times, resulting in a remainder of 38.
The next digit of our result is 9. 
Result so far: 29341.89
The remainder is 38 after subtracting 7722 from 7760.
Since there are no more digits in the dividend, we add a zero to the remainder making it 380, and continue the process.

Let's proceed to step 11:
The number 858 fits into 380 0 times, leaving a remainder of 380.
The next digit of our result is 0. 
Result so far: 29341.89
If we take 0 away from 380, we end up with 380.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3800, and continue the process.

Moving on to step 12:
3800 divided by 858 is 4 with a remainder of 368.
Use 4 as the next digit of our solution. 
Result so far: 29341.8904
Subtracting 3432 from 3800 leaves us with 368.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3680, and continue the process.

Moving on to step 13:
If we divide 3680 by 858, we get 4 and a remainder of 248.
The number 4 becomes the next digit in our result. 
Result so far: 29341.89044
Subtract 3432 from 3680 to get 248.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2480, and continue the process.

The final result is 29341.89044 with a remainder of 0.000248.