We're dividing 25850187 by 356 
We want to divide 25850187 by 356.

On to step 1:
The number 356 fits into 2 0 times, leaving a remainder of 2.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 2 to get 2.
Take the next digit (5) from the dividend and append it to 2, then repeat: 25 / 356

Let's proceed to step 2:
If we divide 25 by 356, we get 0 and a remainder of 25.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 25, we get 25.
Append the next digit (8) from the dividend to 25 and continue with: 258 / 356

Moving on to step 3:
The number 356 fits into 258 0 times, leaving a remainder of 258.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 258, we end up with 258.
Fetch the next digit (5) from the dividend, attach it to 258 and continue: 2585 / 356

Step 4:
If we divide 2585 by 356, we get 7 and a remainder of 93.
Use 7 as the next digit of our solution. 
Result so far: 7.0
Subtract 2492 from 2585 to get 93.
Bring next digit (0) of the dividend behind the 93 and repeat the process: 930 / 356

Going ahead to step 5:
The number 356 fits into 930 2 times, leaving a remainder of 218.
The number 2 becomes the next digit in our result. 
Result so far: 72.0
If we take 712 away from 930, we end up with 218.
Bring next digit (1) of the dividend behind the 218 and repeat the process: 2181 / 356

Advancing to step 6:
356 goes into 2181 6 times with a remainder of 45.
The number 6 becomes the next digit in our result. 
Result so far: 726.0
If we subtract 2136 from 2181, we get 45.
Bring next digit (8) of the dividend behind the 45 and repeat the process: 458 / 356

Step 7:
458 divided by 356 is 1 with a remainder of 102.
Write down 1 as next digit of the result. 
Result so far: 7261.0
If we take 356 away from 458, we end up with 102.
Include the next digit (7) from the dividend after 102, then repeat: 1027 / 356

Advancing to step 8:
The number 356 fits into 1027 2 times, leaving a remainder of 315.
Record the quotient 2 as the next digit in the result. 
Result so far: 72612.0
The remainder is 315 after subtracting 712 from 1027.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3150, and continue the process.

Advancing to step 9:
356 can be fit into 3150 8 times, resulting in a remainder of 302.
Write down 8 as next digit of the result. 
Result so far: 72612.8
If we take 2848 away from 3150, we end up with 302.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3020, and continue the process.

Advancing to step 10:
When dividing 3020 by 356, we get 8 with a remainder of 172.
Use 8 as the next digit of our solution. 
Result so far: 72612.88
If we subtract 2848 from 3020, we get 172.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1720, and continue the process.

The final outcome is 72612.88, with a leftover of 0.172.