25167235 ÷ 858 
We want to divide 25167235 by 858.

Step 1:
858 goes into 2 0 times with a remainder of 2.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 2 leaves us with 2.
Append the next digit (5) from the dividend to 2 and continue with: 25 / 858

Moving on to step 2:
If we divide 25 by 858, we get 0 and a remainder of 25.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 25 to get 25.
Bring next digit (1) of the dividend behind the 25 and repeat the process: 251 / 858

Moving on to step 3:
858 can be fit into 251 0 times, resulting in a remainder of 251.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 251 after subtracting 0 from 251.
Append the next digit (6) from the dividend to 251 and continue with: 2516 / 858

Going ahead to step 4:
2516 divided by 858 is 2 with a remainder of 800.
The next digit of our result is 2. 
Result so far: 2.0
Deduct 1716 from 2516 and we're left with 800.
Grab the next digit (7) from the dividend, add it to 800, then carry on: 8007 / 858

Advancing to step 5:
The number 858 fits into 8007 9 times, leaving a remainder of 285.
Put 9 as the next digit of the answer. 
Result so far: 29.0
Deduct 7722 from 8007 and we're left with 285.
Append the next digit (2) from the dividend to 285 and continue with: 2852 / 858

Going ahead to step 6:
858 goes into 2852 3 times with a remainder of 278.
Record the quotient 3 as the next digit in the result. 
Result so far: 293.0
Subtracting 2574 from 2852 leaves us with 278.
Grab the next digit (3) from the dividend, add it to 278, then carry on: 2783 / 858

On to step 7:
If we divide 2783 by 858, we get 3 and a remainder of 209.
Record the quotient 3 as the next digit in the result. 
Result so far: 2933.0
Subtracting 2574 from 2783 leaves us with 209.
Append the next digit (5) from the dividend to 209 and continue with: 2095 / 858

Let's proceed to step 8:
858 goes into 2095 2 times with a remainder of 379.
Record the quotient 2 as the next digit in the result. 
Result so far: 29332.0
Subtracting 1716 from 2095 leaves us with 379.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3790, and continue the process.

Let's proceed to step 9:
If we divide 3790 by 858, we get 4 and a remainder of 358.
Write down 4 as next digit of the result. 
Result so far: 29332.4
Subtracting 3432 from 3790 leaves us with 358.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3580, and continue the process.

Advancing to step 10:
When dividing 3580 by 858, we get 4 with a remainder of 148.
Record the quotient 4 as the next digit in the result. 
Result so far: 29332.44
Deduct 3432 from 3580 and we're left with 148.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1480, and continue the process.

After the division, we end up with 29332.44 and a remainder of 0.148.