26391625 ÷ 728 
We want to figure out the number of times 26391625 can be divided by 728.

On to step 1:
When dividing 2 by 728, we get 0 with a remainder of 2.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 2 to get 2.
Include the next digit (6) from the dividend after 2, then repeat: 26 / 728

Step 2:
When dividing 26 by 728, we get 0 with a remainder of 26.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we take 0 away from 26, we end up with 26.
Append the next digit (3) from the dividend to 26 and continue with: 263 / 728

Going ahead to step 3:
If we divide 263 by 728, we get 0 and a remainder of 263.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 263 to get 263.
Bring next digit (9) of the dividend behind the 263 and repeat the process: 2639 / 728

Moving on to step 4:
2639 divided by 728 is 3 with a remainder of 455.
The next digit of our result is 3. 
Result so far: 3.0
Subtracting 2184 from 2639 leaves us with 455.
Append the next digit (1) from the dividend to 455 and continue with: 4551 / 728

Let's proceed to step 5:
4551 divided by 728 is 6 with a remainder of 183.
Write down 6 as next digit of the result. 
Result so far: 36.0
If we subtract 4368 from 4551, we get 183.
Fetch the next digit (6) from the dividend, attach it to 183 and continue: 1836 / 728

On to step 6:
728 goes into 1836 2 times with a remainder of 380.
Put 2 as the next digit of the answer. 
Result so far: 362.0
The remainder is 380 after subtracting 1456 from 1836.
Take the next digit (2) from the dividend and append it to 380, then repeat: 3802 / 728

Advancing to step 7:
The number 728 fits into 3802 5 times, leaving a remainder of 162.
The next digit of our result is 5. 
Result so far: 3625.0
Deduct 3640 from 3802 and we're left with 162.
Bring next digit (5) of the dividend behind the 162 and repeat the process: 1625 / 728

Advancing to step 8:
728 goes into 1625 2 times with a remainder of 169.
Use 2 as the next digit of our solution. 
Result so far: 36252.0
Deduct 1456 from 1625 and we're left with 169.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1690, and continue the process.

Going ahead to step 9:
When dividing 1690 by 728, we get 2 with a remainder of 234.
Use 2 as the next digit of our solution. 
Result so far: 36252.2
Deduct 1456 from 1690 and we're left with 234.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2340, and continue the process.

Advancing to step 10:
The number 728 fits into 2340 3 times, leaving a remainder of 156.
Record the quotient 3 as the next digit in the result. 
Result so far: 36252.23
If we take 2184 away from 2340, we end up with 156.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1560, and continue the process.

Going ahead to step 11:
728 can be fit into 1560 2 times, resulting in a remainder of 104.
The next digit of our result is 2. 
Result so far: 36252.232
The remainder is 104 after subtracting 1456 from 1560.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1040, and continue the process.

Advancing to step 12:
If we divide 1040 by 728, we get 1 and a remainder of 312.
The next digit of our result is 1. 
Result so far: 36252.2321
Subtracting 728 from 1040 leaves us with 312.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3120, and continue the process.

Advancing to step 13:
728 can be fit into 3120 4 times, resulting in a remainder of 208.
Put 4 as the next digit of the answer. 
Result so far: 36252.23214
Subtracting 2912 from 3120 leaves us with 208.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2080, and continue the process.

Step 14:
728 can be fit into 2080 2 times, resulting in a remainder of 624.
The next digit of our result is 2. 
Result so far: 36252.232142
Deduct 1456 from 2080 and we're left with 624.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6240, and continue the process.

Let's proceed to step 15:
728 can be fit into 6240 8 times, resulting in a remainder of 416.
Put 8 as the next digit of the answer. 
Result so far: 36252.2321428
Subtract 5824 from 6240 to get 416.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4160, and continue the process.

Moving on to step 16:
728 can be fit into 4160 5 times, resulting in a remainder of 520.
The next digit of our result is 5. 
Result so far: 36252.23214285
If we subtract 3640 from 4160, we get 520.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5200, and continue the process.

After the division, we end up with 36252.23214285 and a remainder of 5.2e-07.