We look at the division of 25219602 by 861 
We want to divide 25219602 by 861.

Let's proceed to step 1:
The number 861 fits into 2 0 times, leaving a remainder of 2.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 2 and we're left with 2.
Grab the next digit (5) from the dividend, add it to 2, then carry on: 25 / 861

Going ahead to step 2:
861 goes into 25 0 times with 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.
Append the next digit (2) from the dividend to 25 and continue with: 252 / 861

Let's proceed to step 3:
The number 861 fits into 252 0 times, leaving a remainder of 252.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 252 and we're left with 252.
Append the next digit (1) from the dividend to 252 and continue with: 2521 / 861

Moving on to step 4:
861 can be fit into 2521 2 times, resulting in a remainder of 799.
The number 2 becomes the next digit in our result. 
Result so far: 2.0
If we take 1722 away from 2521, we end up with 799.
Include the next digit (9) from the dividend after 799, then repeat: 7999 / 861

On to step 5:
The number 861 fits into 7999 9 times, leaving a remainder of 250.
Write down 9 as next digit of the result. 
Result so far: 29.0
The remainder is 250 after subtracting 7749 from 7999.
Fetch the next digit (6) from the dividend, attach it to 250 and continue: 2506 / 861

Step 6:
861 goes into 2506 2 times with a remainder of 784.
The next digit of our result is 2. 
Result so far: 292.0
Subtracting 1722 from 2506 leaves us with 784.
Grab the next digit (0) from the dividend, add it to 784, then carry on: 7840 / 861

Advancing to step 7:
7840 divided by 861 is 9 with a remainder of 91.
Use 9 as the next digit of our solution. 
Result so far: 2929.0
The remainder is 91 after subtracting 7749 from 7840.
Append the next digit (2) from the dividend to 91 and continue with: 912 / 861

Going ahead to step 8:
912 divided by 861 is 1 with a remainder of 51.
Use 1 as the next digit of our solution. 
Result so far: 29291.0
If we take 861 away from 912, we end up with 51.
Since there are no more digits in the dividend, we add a zero to the remainder making it 510, and continue the process.

Going ahead to step 9:
The number 861 fits into 510 0 times, leaving a remainder of 510.
The next digit of our result is 0. 
Result so far: 29291.0
If we subtract 0 from 510, we get 510.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5100, and continue the process.

Advancing to step 10:
The number 861 fits into 5100 5 times, leaving a remainder of 795.
The next digit of our result is 5. 
Result so far: 29291.05
If we take 4305 away from 5100, we end up with 795.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7950, and continue the process.

Advancing to step 11:
861 goes into 7950 9 times with a remainder of 201.
The number 9 becomes the next digit in our result. 
Result so far: 29291.059
If we subtract 7749 from 7950, we get 201.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2010, and continue the process.

Let's proceed to step 12:
861 can be fit into 2010 2 times, resulting in a remainder of 288.
Put 2 as the next digit of the answer. 
Result so far: 29291.0592
If we take 1722 away from 2010, we end up with 288.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2880, and continue the process.

Going ahead to step 13:
When dividing 2880 by 861, we get 3 with a remainder of 297.
The number 3 becomes the next digit in our result. 
Result so far: 29291.05923
If we subtract 2583 from 2880, we get 297.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2970, and continue the process.

Going ahead to step 14:
861 goes into 2970 3 times with a remainder of 387.
The next digit of our result is 3. 
Result so far: 29291.059233
Subtract 2583 from 2970 to get 387.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3870, and continue the process.

After the division, we end up with 29291.059233 and a remainder of 3.87e-05.