342090 divided by 81 
We want to divide 342090 by 81.

Moving on to step 1:
81 can be fit into 3 0 times, resulting in a remainder of 3.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 3, we get 3.
Include the next digit (4) from the dividend after 3, then repeat: 34 / 81

Advancing to step 2:
When dividing 34 by 81, we get 0 with a remainder of 34.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
The remainder is 34 after subtracting 0 from 34.
Include the next digit (2) from the dividend after 34, then repeat: 342 / 81

On to step 3:
81 can be fit into 342 4 times, resulting in a remainder of 18.
Use 4 as the next digit of our solution. 
Result so far: 4.0
If we subtract 324 from 342, we get 18.
Include the next digit (0) from the dividend after 18, then repeat: 180 / 81

Moving on to step 4:
81 can be fit into 180 2 times, resulting in a remainder of 18.
Write down 2 as next digit of the result. 
Result so far: 42.0
Subtracting 162 from 180 leaves us with 18.
Grab the next digit (9) from the dividend, add it to 18, then carry on: 189 / 81

Advancing to step 5:
If we divide 189 by 81, we get 2 and a remainder of 27.
The number 2 becomes the next digit in our result. 
Result so far: 422.0
The remainder is 27 after subtracting 162 from 189.
Append the next digit (0) from the dividend to 27 and continue with: 270 / 81

Let's proceed to step 6:
81 can be fit into 270 3 times, resulting in a remainder of 27.
The number 3 becomes the next digit in our result. 
Result so far: 4223.0
If we subtract 243 from 270, we get 27.
Since there are no more digits in the dividend, we add a zero to the remainder making it 270, and continue the process.

Advancing to step 7:
270 divided by 81 is 3 with a remainder of 27.
The number 3 becomes the next digit in our result. 
Result so far: 4223.3
If we take 243 away from 270, we end up with 27.
Since there are no more digits in the dividend, we add a zero to the remainder making it 270, and continue the process.

Moving on to step 8:
The number 81 fits into 270 3 times, leaving a remainder of 27.
Record the quotient 3 as the next digit in the result. 
Result so far: 4223.33
Subtracting 243 from 270 leaves us with 27.
Since there are no more digits in the dividend, we add a zero to the remainder making it 270, and continue the process.

Our division results in 4223.33 with a remaining 0.027.