We look at the division of 91658 by 81 
Let's see how many times 81 fits into 91658.

Let's proceed to step 1:
81 goes into 9 0 times with a remainder of 9.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 9 to get 9.
Bring next digit (1) of the dividend behind the 9 and repeat the process: 91 / 81

Let's proceed to step 2:
When dividing 91 by 81, we get 1 with a remainder of 10.
Put 1 as the next digit of the answer. 
Result so far: 1.0
If we subtract 81 from 91, we get 10.
Append the next digit (6) from the dividend to 10 and continue with: 106 / 81

Going ahead to step 3:
When dividing 106 by 81, we get 1 with a remainder of 25.
The next digit of our result is 1. 
Result so far: 11.0
Subtracting 81 from 106 leaves us with 25.
Grab the next digit (5) from the dividend, add it to 25, then carry on: 255 / 81

Advancing to step 4:
If we divide 255 by 81, we get 3 and a remainder of 12.
Put 3 as the next digit of the answer. 
Result so far: 113.0
Subtracting 243 from 255 leaves us with 12.
Take the next digit (8) from the dividend and append it to 12, then repeat: 128 / 81

Let's proceed to step 5:
81 can be fit into 128 1 times, resulting in a remainder of 47.
Use 1 as the next digit of our solution. 
Result so far: 1131.0
The remainder is 47 after subtracting 81 from 128.
Since there are no more digits in the dividend, we add a zero to the remainder making it 470, and continue the process.

Step 6:
The number 81 fits into 470 5 times, leaving a remainder of 65.
Put 5 as the next digit of the answer. 
Result so far: 1131.5
Deduct 405 from 470 and we're left with 65.
Since there are no more digits in the dividend, we add a zero to the remainder making it 650, and continue the process.

Going ahead to step 7:
The number 81 fits into 650 8 times, leaving a remainder of 2.
The number 8 becomes the next digit in our result. 
Result so far: 1131.58
The remainder is 2 after subtracting 648 from 650.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Advancing to step 8:
If we divide 20 by 81, we get 0 and a remainder of 20.
Use 0 as the next digit of our solution. 
Result so far: 1131.58
Deduct 0 from 20 and we're left with 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Advancing to step 9:
81 goes into 200 2 times with a remainder of 38.
Put 2 as the next digit of the answer. 
Result so far: 1131.5802
The remainder is 38 after subtracting 162 from 200.
Since there are no more digits in the dividend, we add a zero to the remainder making it 380, and continue the process.

Advancing to step 10:
If we divide 380 by 81, we get 4 and a remainder of 56.
Write down 4 as next digit of the result. 
Result so far: 1131.58024
If we take 324 away from 380, we end up with 56.
Since there are no more digits in the dividend, we add a zero to the remainder making it 560, and continue the process.

Advancing to step 11:
81 goes into 560 6 times with a remainder of 74.
Record the quotient 6 as the next digit in the result. 
Result so far: 1131.580246
If we subtract 486 from 560, we get 74.
Since there are no more digits in the dividend, we add a zero to the remainder making it 740, and continue the process.

Going ahead to step 12:
The number 81 fits into 740 9 times, leaving a remainder of 11.
Record the quotient 9 as the next digit in the result. 
Result so far: 1131.5802469
If we take 729 away from 740, we end up with 11.
Since there are no more digits in the dividend, we add a zero to the remainder making it 110, and continue the process.

Going ahead to step 13:
110 divided by 81 is 1 with a remainder of 29.
Write down 1 as next digit of the result. 
Result so far: 1131.58024691
The remainder is 29 after subtracting 81 from 110.
Since there are no more digits in the dividend, we add a zero to the remainder making it 290, and continue the process.

After the division, we end up with 1131.58024691 and a remainder of 2.9e-08.