We look at the division of 840592 by 91 
Let's see how many times 91 fits into 840592.

Going ahead to step 1:
If we divide 8 by 91, we get 0 and a remainder of 8.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 8, we end up with 8.
Fetch the next digit (4) from the dividend, attach it to 8 and continue: 84 / 91

Moving on to step 2:
If we divide 84 by 91, we get 0 and a remainder of 84.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 84 leaves us with 84.
Bring next digit (0) of the dividend behind the 84 and repeat the process: 840 / 91

Step 3:
91 can be fit into 840 9 times, resulting in a remainder of 21.
Put 9 as the next digit of the answer. 
Result so far: 9.0
The remainder is 21 after subtracting 819 from 840.
Fetch the next digit (5) from the dividend, attach it to 21 and continue: 215 / 91

On to step 4:
When dividing 215 by 91, we get 2 with a remainder of 33.
Use 2 as the next digit of our solution. 
Result so far: 92.0
Deduct 182 from 215 and we're left with 33.
Grab the next digit (9) from the dividend, add it to 33, then carry on: 339 / 91

Advancing to step 5:
339 divided by 91 is 3 with a remainder of 66.
The number 3 becomes the next digit in our result. 
Result so far: 923.0
If we take 273 away from 339, we end up with 66.
Grab the next digit (2) from the dividend, add it to 66, then carry on: 662 / 91

Advancing to step 6:
662 divided by 91 is 7 with a remainder of 25.
Record the quotient 7 as the next digit in the result. 
Result so far: 9237.0
The remainder is 25 after subtracting 637 from 662.
Since there are no more digits in the dividend, we add a zero to the remainder making it 250, and continue the process.

Going ahead to step 7:
When dividing 250 by 91, we get 2 with a remainder of 68.
The number 2 becomes the next digit in our result. 
Result so far: 9237.2
Deduct 182 from 250 and we're left with 68.
Since there are no more digits in the dividend, we add a zero to the remainder making it 680, and continue the process.

Moving on to step 8:
91 goes into 680 7 times with a remainder of 43.
The next digit of our result is 7. 
Result so far: 9237.27
Subtracting 637 from 680 leaves us with 43.
Since there are no more digits in the dividend, we add a zero to the remainder making it 430, and continue the process.

Going ahead to step 9:
91 goes into 430 4 times with a remainder of 66.
Write down 4 as next digit of the result. 
Result so far: 9237.274
If we take 364 away from 430, we end up with 66.
Since there are no more digits in the dividend, we add a zero to the remainder making it 660, and continue the process.

Moving on to step 10:
If we divide 660 by 91, we get 7 and a remainder of 23.
Put 7 as the next digit of the answer. 
Result so far: 9237.2747
Subtract 637 from 660 to get 23.
Since there are no more digits in the dividend, we add a zero to the remainder making it 230, and continue the process.

On to step 11:
91 goes into 230 2 times with a remainder of 48.
Use 2 as the next digit of our solution. 
Result so far: 9237.27472
The remainder is 48 after subtracting 182 from 230.
Since there are no more digits in the dividend, we add a zero to the remainder making it 480, and continue the process.

Advancing to step 12:
The number 91 fits into 480 5 times, leaving a remainder of 25.
Put 5 as the next digit of the answer. 
Result so far: 9237.274725
If we take 455 away from 480, we end up with 25.
Since there are no more digits in the dividend, we add a zero to the remainder making it 250, and continue the process.

Advancing to step 13:
If we divide 250 by 91, we get 2 and a remainder of 68.
Write down 2 as next digit of the result. 
Result so far: 9237.2747252
If we take 182 away from 250, we end up with 68.
Since there are no more digits in the dividend, we add a zero to the remainder making it 680, and continue the process.

Let's proceed to step 14:
When dividing 680 by 91, we get 7 with a remainder of 43.
Use 7 as the next digit of our solution. 
Result so far: 9237.27472527
The remainder is 43 after subtracting 637 from 680.
Since there are no more digits in the dividend, we add a zero to the remainder making it 430, and continue the process.

The final outcome is 9237.27472527, with a leftover of 4.3e-08.