91404625 divided by 81 
We want to figure out the number of times 91404625 can be divided by 81.

Going ahead to step 1:
When dividing 9 by 81, we get 0 with a remainder of 9.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 9 and we're left with 9.
Bring next digit (1) of the dividend behind the 9 and repeat the process: 91 / 81

On to step 2:
If we divide 91 by 81, we get 1 and a remainder of 10.
Use 1 as the next digit of our solution. 
Result so far: 1.0
Subtract 81 from 91 to get 10.
Bring next digit (4) of the dividend behind the 10 and repeat the process: 104 / 81

Moving on to step 3:
The number 81 fits into 104 1 times, leaving a remainder of 23.
The number 1 becomes the next digit in our result. 
Result so far: 11.0
Subtracting 81 from 104 leaves us with 23.
Take the next digit (0) from the dividend and append it to 23, then repeat: 230 / 81

On to step 4:
If we divide 230 by 81, we get 2 and a remainder of 68.
Put 2 as the next digit of the answer. 
Result so far: 112.0
The remainder is 68 after subtracting 162 from 230.
Include the next digit (4) from the dividend after 68, then repeat: 684 / 81

Moving on to step 5:
684 divided by 81 is 8 with a remainder of 36.
The number 8 becomes the next digit in our result. 
Result so far: 1128.0
If we take 648 away from 684, we end up with 36.
Append the next digit (6) from the dividend to 36 and continue with: 366 / 81

On to step 6:
366 divided by 81 is 4 with a remainder of 42.
The next digit of our result is 4. 
Result so far: 11284.0
The remainder is 42 after subtracting 324 from 366.
Take the next digit (2) from the dividend and append it to 42, then repeat: 422 / 81

Let's proceed to step 7:
The number 81 fits into 422 5 times, leaving a remainder of 17.
Put 5 as the next digit of the answer. 
Result so far: 112845.0
If we take 405 away from 422, we end up with 17.
Take the next digit (5) from the dividend and append it to 17, then repeat: 175 / 81

Let's proceed to step 8:
The number 81 fits into 175 2 times, leaving a remainder of 13.
Record the quotient 2 as the next digit in the result. 
Result so far: 1128452.0
Subtracting 162 from 175 leaves us with 13.
Since there are no more digits in the dividend, we add a zero to the remainder making it 130, and continue the process.

Moving on to step 9:
130 divided by 81 is 1 with a remainder of 49.
The number 1 becomes the next digit in our result. 
Result so far: 1128452.1
The remainder is 49 after subtracting 81 from 130.
Since there are no more digits in the dividend, we add a zero to the remainder making it 490, and continue the process.

Going ahead to step 10:
81 can be fit into 490 6 times, resulting in a remainder of 4.
Record the quotient 6 as the next digit in the result. 
Result so far: 1128452.16
Deduct 486 from 490 and we're left with 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Going ahead to step 11:
81 goes into 40 0 times with a remainder of 40.
The number 0 becomes the next digit in our result. 
Result so far: 1128452.16
Subtract 0 from 40 to get 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Advancing to step 12:
81 can be fit into 400 4 times, resulting in a remainder of 76.
The next digit of our result is 4. 
Result so far: 1128452.1604
If we take 324 away from 400, we end up with 76.
Since there are no more digits in the dividend, we add a zero to the remainder making it 760, and continue the process.

Let's proceed to step 13:
When dividing 760 by 81, we get 9 with a remainder of 31.
Use 9 as the next digit of our solution. 
Result so far: 1128452.16049
Deduct 729 from 760 and we're left with 31.
Since there are no more digits in the dividend, we add a zero to the remainder making it 310, and continue the process.

Going ahead to step 14:
81 can be fit into 310 3 times, resulting in a remainder of 67.
Write down 3 as next digit of the result. 
Result so far: 1128452.160493
Deduct 243 from 310 and we're left with 67.
Since there are no more digits in the dividend, we add a zero to the remainder making it 670, and continue the process.

On to step 15:
If we divide 670 by 81, we get 8 and a remainder of 22.
Write down 8 as next digit of the result. 
Result so far: 1128452.1604938
Deduct 648 from 670 and we're left with 22.
Since there are no more digits in the dividend, we add a zero to the remainder making it 220, and continue the process.

Moving on to step 16:
81 goes into 220 2 times with a remainder of 58.
Record the quotient 2 as the next digit in the result. 
Result so far: 1128452.16049382
If we take 162 away from 220, we end up with 58.
Since there are no more digits in the dividend, we add a zero to the remainder making it 580, and continue the process.

Our division results in 1128452.16049382 with a remaining 5.8e-08.