26256507 ÷ 661 
Let's see how many times 661 fits into 26256507.

Advancing to step 1:
When dividing 2 by 661, we get 0 with a remainder of 2.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we take 0 away from 2, we end up with 2.
Grab the next digit (6) from the dividend, add it to 2, then carry on: 26 / 661

Moving on to step 2:
26 divided by 661 is 0 with a remainder of 26.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 26 after subtracting 0 from 26.
Include the next digit (2) from the dividend after 26, then repeat: 262 / 661

Step 3:
661 goes into 262 0 times with a remainder of 262.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 262 after subtracting 0 from 262.
Include the next digit (5) from the dividend after 262, then repeat: 2625 / 661

On to step 4:
661 goes into 2625 3 times with a remainder of 642.
Put 3 as the next digit of the answer. 
Result so far: 3.0
Subtracting 1983 from 2625 leaves us with 642.
Grab the next digit (6) from the dividend, add it to 642, then carry on: 6426 / 661

Step 5:
661 goes into 6426 9 times with a remainder of 477.
Use 9 as the next digit of our solution. 
Result so far: 39.0
If we subtract 5949 from 6426, we get 477.
Fetch the next digit (5) from the dividend, attach it to 477 and continue: 4775 / 661

Step 6:
The number 661 fits into 4775 7 times, leaving a remainder of 148.
Record the quotient 7 as the next digit in the result. 
Result so far: 397.0
The remainder is 148 after subtracting 4627 from 4775.
Include the next digit (0) from the dividend after 148, then repeat: 1480 / 661

On to step 7:
661 goes into 1480 2 times with a remainder of 158.
Use 2 as the next digit of our solution. 
Result so far: 3972.0
Subtract 1322 from 1480 to get 158.
Bring next digit (7) of the dividend behind the 158 and repeat the process: 1587 / 661

Advancing to step 8:
1587 divided by 661 is 2 with a remainder of 265.
Put 2 as the next digit of the answer. 
Result so far: 39722.0
If we subtract 1322 from 1587, we get 265.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2650, and continue the process.

Let's proceed to step 9:
661 goes into 2650 4 times with a remainder of 6.
The number 4 becomes the next digit in our result. 
Result so far: 39722.4
Deduct 2644 from 2650 and we're left with 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Moving on to step 10:
When dividing 60 by 661, we get 0 with a remainder of 60.
The number 0 becomes the next digit in our result. 
Result so far: 39722.4
Subtracting 0 from 60 leaves us with 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

On to step 11:
600 divided by 661 is 0 with a remainder of 600.
The next digit of our result is 0. 
Result so far: 39722.4
Subtract 0 from 600 to get 600.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6000, and continue the process.

The final outcome is 39722.4, with a leftover of 0.06.