We're dividing 303518 by 81 
Our goal is to divide 303518 by 81.

Step 1:
81 can be fit into 3 0 times, resulting in a remainder of 3.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 3 and we're left with 3.
Grab the next digit (0) from the dividend, add it to 3, then carry on: 30 / 81

Going ahead to step 2:
The number 81 fits into 30 0 times, leaving a remainder of 30.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 30, we end up with 30.
Grab the next digit (3) from the dividend, add it to 30, then carry on: 303 / 81

Moving on to step 3:
If we divide 303 by 81, we get 3 and a remainder of 60.
Put 3 as the next digit of the answer. 
Result so far: 3.0
If we subtract 243 from 303, we get 60.
Append the next digit (5) from the dividend to 60 and continue with: 605 / 81

Moving on to step 4:
The number 81 fits into 605 7 times, leaving a remainder of 38.
Use 7 as the next digit of our solution. 
Result so far: 37.0
Subtracting 567 from 605 leaves us with 38.
Grab the next digit (1) from the dividend, add it to 38, then carry on: 381 / 81

Let's proceed to step 5:
The number 81 fits into 381 4 times, leaving a remainder of 57.
Write down 4 as next digit of the result. 
Result so far: 374.0
Deduct 324 from 381 and we're left with 57.
Include the next digit (8) from the dividend after 57, then repeat: 578 / 81

Going ahead to step 6:
81 can be fit into 578 7 times, resulting in a remainder of 11.
Write down 7 as next digit of the result. 
Result so far: 3747.0
Subtract 567 from 578 to get 11.
Since there are no more digits in the dividend, we add a zero to the remainder making it 110, and continue the process.

Advancing to step 7:
110 divided by 81 is 1 with a remainder of 29.
The next digit of our result is 1. 
Result so far: 3747.1
Subtracting 81 from 110 leaves us with 29.
Since there are no more digits in the dividend, we add a zero to the remainder making it 290, and continue the process.

Going ahead to step 8:
When dividing 290 by 81, we get 3 with a remainder of 47.
Put 3 as the next digit of the answer. 
Result so far: 3747.13
Deduct 243 from 290 and we're left with 47.
Since there are no more digits in the dividend, we add a zero to the remainder making it 470, and continue the process.

Moving on to step 9:
When dividing 470 by 81, we get 5 with a remainder of 65.
Record the quotient 5 as the next digit in the result. 
Result so far: 3747.135
Subtract 405 from 470 to get 65.
Since there are no more digits in the dividend, we add a zero to the remainder making it 650, and continue the process.

On to step 10:
If we divide 650 by 81, we get 8 and a remainder of 2.
Put 8 as the next digit of the answer. 
Result so far: 3747.1358
If we take 648 away from 650, we end up 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 11:
20 divided by 81 is 0 with a remainder of 20.
Write down 0 as next digit of the result. 
Result so far: 3747.1358
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.

On to step 12:
If we divide 200 by 81, we get 2 and a remainder of 38.
The number 2 becomes the next digit in our result. 
Result so far: 3747.135802
If we take 162 away from 200, we end up with 38.
Since there are no more digits in the dividend, we add a zero to the remainder making it 380, and continue the process.

On to step 13:
If we divide 380 by 81, we get 4 and a remainder of 56.
The next digit of our result is 4. 
Result so far: 3747.1358024
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 14:
81 goes into 560 6 times with a remainder of 74.
Use 6 as the next digit of our solution. 
Result so far: 3747.13580246
Subtracting 486 from 560 leaves us with 74.
Since there are no more digits in the dividend, we add a zero to the remainder making it 740, and continue the process.

After the division, we end up with 3747.13580246 and a remainder of 7.4e-08.