Let's divide 342453 by 91
We want to divide 342453 by 91.

On to step 1:
If we divide 3 by 91, we get 0 and a remainder of 3.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 3 after subtracting 0 from 3.
Append the next digit (4) from the dividend to 3 and continue with: 34 / 91

Moving on to step 2:
The number 91 fits into 34 0 times, leaving a remainder of 34.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 34 and we're left with 34.
Grab the next digit (2) from the dividend, add it to 34, then carry on: 342 / 91

On to step 3:
When dividing 342 by 91, we get 3 with a remainder of 69.
Record the quotient 3 as the next digit in the result. 
Result so far: 3.0
If we subtract 273 from 342, we get 69.
Append the next digit (4) from the dividend to 69 and continue with: 694 / 91

Step 4:
If we divide 694 by 91, we get 7 and a remainder of 57.
The number 7 becomes the next digit in our result. 
Result so far: 37.0
Deduct 637 from 694 and we're left with 57.
Include the next digit (5) from the dividend after 57, then repeat: 575 / 91

On to step 5:
91 goes into 575 6 times with a remainder of 29.
The number 6 becomes the next digit in our result. 
Result so far: 376.0
Deduct 546 from 575 and we're left with 29.
Append the next digit (3) from the dividend to 29 and continue with: 293 / 91

Step 6:
The number 91 fits into 293 3 times, leaving a remainder of 20.
Use 3 as the next digit of our solution. 
Result so far: 3763.0
The remainder is 20 after subtracting 273 from 293.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

On to step 7:
When dividing 200 by 91, we get 2 with a remainder of 18.
The next digit of our result is 2. 
Result so far: 3763.2
If we take 182 away from 200, we end up with 18.
Since there are no more digits in the dividend, we add a zero to the remainder making it 180, and continue the process.

Going ahead to step 8:
91 can be fit into 180 1 times, resulting in a remainder of 89.
Put 1 as the next digit of the answer. 
Result so far: 3763.21
The remainder is 89 after subtracting 91 from 180.
Since there are no more digits in the dividend, we add a zero to the remainder making it 890, and continue the process.

Moving on to step 9:
If we divide 890 by 91, we get 9 and a remainder of 71.
Record the quotient 9 as the next digit in the result. 
Result so far: 3763.219
The remainder is 71 after subtracting 819 from 890.
Since there are no more digits in the dividend, we add a zero to the remainder making it 710, and continue the process.

On to step 10:
710 divided by 91 is 7 with a remainder of 73.
Write down 7 as next digit of the result. 
Result so far: 3763.2197
Subtract 637 from 710 to get 73.
Since there are no more digits in the dividend, we add a zero to the remainder making it 730, and continue the process.

Step 11:
91 can be fit into 730 8 times, resulting in a remainder of 2.
The next digit of our result is 8. 
Result so far: 3763.21978
Subtracting 728 from 730 leaves us with 2.
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 12:
91 goes into 20 0 times with a remainder of 20.
Put 0 as the next digit of the answer. 
Result so far: 3763.21978
If we take 0 away from 20, we end up 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.

Moving on to step 13:
If we divide 200 by 91, we get 2 and a remainder of 18.
The number 2 becomes the next digit in our result. 
Result so far: 3763.2197802
Subtract 182 from 200 to get 18.
Since there are no more digits in the dividend, we add a zero to the remainder making it 180, and continue the process.

Let's proceed to step 14:
91 goes into 180 1 times with a remainder of 89.
The next digit of our result is 1. 
Result so far: 3763.21978021
The remainder is 89 after subtracting 91 from 180.
Since there are no more digits in the dividend, we add a zero to the remainder making it 890, and continue the process.

The final outcome is 3763.21978021, with a leftover of 8.9e-08.