25311501 ÷ 802 
Our goal is to divide 25311501 by 802.

Going ahead to step 1:
802 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
Deduct 0 from 2 and we're left with 2.
Fetch the next digit (5) from the dividend, attach it to 2 and continue: 25 / 802

Let's proceed to step 2:
802 can be fit into 25 0 times, resulting in a remainder of 25.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 25 after subtracting 0 from 25.
Bring next digit (3) of the dividend behind the 25 and repeat the process: 253 / 802

Advancing to step 3:
802 can be fit into 253 0 times, resulting in a remainder of 253.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 253, we end up with 253.
Append the next digit (1) from the dividend to 253 and continue with: 2531 / 802

On to step 4:
The number 802 fits into 2531 3 times, leaving a remainder of 125.
Write down 3 as next digit of the result. 
Result so far: 3.0
If we take 2406 away from 2531, we end up with 125.
Take the next digit (1) from the dividend and append it to 125, then repeat: 1251 / 802

Advancing to step 5:
802 goes into 1251 1 times with a remainder of 449.
The next digit of our result is 1. 
Result so far: 31.0
Subtracting 802 from 1251 leaves us with 449.
Take the next digit (5) from the dividend and append it to 449, then repeat: 4495 / 802

Advancing to step 6:
If we divide 4495 by 802, we get 5 and a remainder of 485.
The next digit of our result is 5. 
Result so far: 315.0
The remainder is 485 after subtracting 4010 from 4495.
Append the next digit (0) from the dividend to 485 and continue with: 4850 / 802

Let's proceed to step 7:
802 can be fit into 4850 6 times, resulting in a remainder of 38.
The next digit of our result is 6. 
Result so far: 3156.0
If we subtract 4812 from 4850, we get 38.
Fetch the next digit (1) from the dividend, attach it to 38 and continue: 381 / 802

Going ahead to step 8:
802 goes into 381 0 times with a remainder of 381.
Record the quotient 0 as the next digit in the result. 
Result so far: 31560.0
The remainder is 381 after subtracting 0 from 381.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3810, and continue the process.

Moving on to step 9:
802 goes into 3810 4 times with a remainder of 602.
Put 4 as the next digit of the answer. 
Result so far: 31560.4
Subtracting 3208 from 3810 leaves us with 602.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6020, and continue the process.

Advancing to step 10:
802 goes into 6020 7 times with a remainder of 406.
Put 7 as the next digit of the answer. 
Result so far: 31560.47
If we subtract 5614 from 6020, we get 406.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4060, and continue the process.

Let's proceed to step 11:
802 goes into 4060 5 times with a remainder of 50.
Write down 5 as next digit of the result. 
Result so far: 31560.475
The remainder is 50 after subtracting 4010 from 4060.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

Advancing to step 12:
When dividing 500 by 802, we get 0 with a remainder of 500.
Record the quotient 0 as the next digit in the result. 
Result so far: 31560.475
Deduct 0 from 500 and we're left with 500.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5000, and continue the process.

Step 13:
The number 802 fits into 5000 6 times, leaving a remainder of 188.
Write down 6 as next digit of the result. 
Result so far: 31560.47506
Subtract 4812 from 5000 to get 188.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1880, and continue the process.

Let's proceed to step 14:
If we divide 1880 by 802, we get 2 and a remainder of 276.
Use 2 as the next digit of our solution. 
Result so far: 31560.475062
The remainder is 276 after subtracting 1604 from 1880.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2760, and continue the process.

Step 15:
802 goes into 2760 3 times with a remainder of 354.
Use 3 as the next digit of our solution. 
Result so far: 31560.4750623
The remainder is 354 after subtracting 2406 from 2760.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3540, and continue the process.

Let's proceed to step 16:
802 goes into 3540 4 times with a remainder of 332.
Record the quotient 4 as the next digit in the result. 
Result so far: 31560.47506234
Subtracting 3208 from 3540 leaves us with 332.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3320, and continue the process.

The final outcome is 31560.47506234, with a leftover of 3.32e-07.