Let's divide 25098107 by 171
Our goal is to divide 25098107 by 171.

On to step 1:
When dividing 2 by 171, we get 0 with a remainder of 2.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 2 and we're left with 2.
Append the next digit (5) from the dividend to 2 and continue with: 25 / 171

Going ahead to step 2:
171 goes into 25 0 times with a remainder of 25.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 25, we get 25.
Grab the next digit (0) from the dividend, add it to 25, then carry on: 250 / 171

Moving on to step 3:
171 goes into 250 1 times with a remainder of 79.
Put 1 as the next digit of the answer. 
Result so far: 1.0
If we take 171 away from 250, we end up with 79.
Grab the next digit (9) from the dividend, add it to 79, then carry on: 799 / 171

Let's proceed to step 4:
If we divide 799 by 171, we get 4 and a remainder of 115.
Write down 4 as next digit of the result. 
Result so far: 14.0
Subtract 684 from 799 to get 115.
Bring next digit (8) of the dividend behind the 115 and repeat the process: 1158 / 171

Let's proceed to step 5:
The number 171 fits into 1158 6 times, leaving a remainder of 132.
The next digit of our result is 6. 
Result so far: 146.0
Subtract 1026 from 1158 to get 132.
Fetch the next digit (1) from the dividend, attach it to 132 and continue: 1321 / 171

Moving on to step 6:
The number 171 fits into 1321 7 times, leaving a remainder of 124.
The number 7 becomes the next digit in our result. 
Result so far: 1467.0
If we take 1197 away from 1321, we end up with 124.
Fetch the next digit (0) from the dividend, attach it to 124 and continue: 1240 / 171

Moving on to step 7:
When dividing 1240 by 171, we get 7 with a remainder of 43.
Use 7 as the next digit of our solution. 
Result so far: 14677.0
If we subtract 1197 from 1240, we get 43.
Append the next digit (7) from the dividend to 43 and continue with: 437 / 171

On to step 8:
If we divide 437 by 171, we get 2 and a remainder of 95.
Record the quotient 2 as the next digit in the result. 
Result so far: 146772.0
Subtracting 342 from 437 leaves us with 95.
Since there are no more digits in the dividend, we add a zero to the remainder making it 950, and continue the process.

Going ahead to step 9:
The number 171 fits into 950 5 times, leaving a remainder of 95.
Put 5 as the next digit of the answer. 
Result so far: 146772.5
The remainder is 95 after subtracting 855 from 950.
Since there are no more digits in the dividend, we add a zero to the remainder making it 950, and continue the process.

Advancing to step 10:
When dividing 950 by 171, we get 5 with a remainder of 95.
Write down 5 as next digit of the result. 
Result so far: 146772.55
The remainder is 95 after subtracting 855 from 950.
Since there are no more digits in the dividend, we add a zero to the remainder making it 950, and continue the process.

After the division, we end up with 146772.55 and a remainder of 0.095.