Let's divide 25815712 by 602
Our goal is to divide 25815712 by 602.

Advancing to step 1:
When dividing 2 by 602, we get 0 with a remainder of 2.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 2, we get 2.
Include the next digit (5) from the dividend after 2, then repeat: 25 / 602

Advancing to step 2:
When dividing 25 by 602, we get 0 with a remainder of 25.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 25 after subtracting 0 from 25.
Grab the next digit (8) from the dividend, add it to 25, then carry on: 258 / 602

Let's proceed to step 3:
258 divided by 602 is 0 with a remainder of 258.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 258, we get 258.
Grab the next digit (1) from the dividend, add it to 258, then carry on: 2581 / 602

On to step 4:
If we divide 2581 by 602, we get 4 and a remainder of 173.
The number 4 becomes the next digit in our result. 
Result so far: 4.0
The remainder is 173 after subtracting 2408 from 2581.
Include the next digit (5) from the dividend after 173, then repeat: 1735 / 602

Advancing to step 5:
602 can be fit into 1735 2 times, resulting in a remainder of 531.
Put 2 as the next digit of the answer. 
Result so far: 42.0
Deduct 1204 from 1735 and we're left with 531.
Take the next digit (7) from the dividend and append it to 531, then repeat: 5317 / 602

On to step 6:
When dividing 5317 by 602, we get 8 with a remainder of 501.
Record the quotient 8 as the next digit in the result. 
Result so far: 428.0
Subtracting 4816 from 5317 leaves us with 501.
Append the next digit (1) from the dividend to 501 and continue with: 5011 / 602

Advancing to step 7:
5011 divided by 602 is 8 with a remainder of 195.
Use 8 as the next digit of our solution. 
Result so far: 4288.0
Deduct 4816 from 5011 and we're left with 195.
Append the next digit (2) from the dividend to 195 and continue with: 1952 / 602

On to step 8:
1952 divided by 602 is 3 with a remainder of 146.
Use 3 as the next digit of our solution. 
Result so far: 42883.0
The remainder is 146 after subtracting 1806 from 1952.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1460, and continue the process.

Step 9:
602 goes into 1460 2 times with a remainder of 256.
The number 2 becomes the next digit in our result. 
Result so far: 42883.2
Subtract 1204 from 1460 to get 256.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2560, and continue the process.

Let's proceed to step 10:
602 can be fit into 2560 4 times, resulting in a remainder of 152.
Record the quotient 4 as the next digit in the result. 
Result so far: 42883.24
Subtract 2408 from 2560 to get 152.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1520, and continue the process.

Let's proceed to step 11:
602 can be fit into 1520 2 times, resulting in a remainder of 316.
Use 2 as the next digit of our solution. 
Result so far: 42883.242
If we subtract 1204 from 1520, we get 316.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3160, and continue the process.

On to step 12:
602 can be fit into 3160 5 times, resulting in a remainder of 150.
The next digit of our result is 5. 
Result so far: 42883.2425
If we subtract 3010 from 3160, we get 150.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1500, and continue the process.

Let's proceed to step 13:
602 can be fit into 1500 2 times, resulting in a remainder of 296.
Use 2 as the next digit of our solution. 
Result so far: 42883.24252
If we subtract 1204 from 1500, we get 296.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2960, and continue the process.

On to step 14:
The number 602 fits into 2960 4 times, leaving a remainder of 552.
Record the quotient 4 as the next digit in the result. 
Result so far: 42883.242524
Deduct 2408 from 2960 and we're left with 552.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5520, and continue the process.

Moving on to step 15:
602 goes into 5520 9 times with a remainder of 102.
Use 9 as the next digit of our solution. 
Result so far: 42883.2425249
If we take 5418 away from 5520, we end up with 102.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1020, and continue the process.

Moving on to step 16:
When dividing 1020 by 602, we get 1 with a remainder of 418.
Record the quotient 1 as the next digit in the result. 
Result so far: 42883.24252491
Deduct 602 from 1020 and we're left with 418.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4180, and continue the process.

After the division, we end up with 42883.24252491 and a remainder of 4.18e-07.