We look at the division of 83646780 by 243 
Our goal is to divide 83646780 by 243.

On to step 1:
If we divide 8 by 243, we get 0 and a remainder of 8.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 8 leaves us with 8.
Append the next digit (3) from the dividend to 8 and continue with: 83 / 243

Advancing to step 2:
When dividing 83 by 243, we get 0 with a remainder of 83.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 83, we get 83.
Bring next digit (6) of the dividend behind the 83 and repeat the process: 836 / 243

Going ahead to step 3:
836 divided by 243 is 3 with a remainder of 107.
The next digit of our result is 3. 
Result so far: 3.0
Subtract 729 from 836 to get 107.
Bring next digit (4) of the dividend behind the 107 and repeat the process: 1074 / 243

Going ahead to step 4:
243 goes into 1074 4 times with a remainder of 102.
The number 4 becomes the next digit in our result. 
Result so far: 34.0
If we subtract 972 from 1074, we get 102.
Append the next digit (6) from the dividend to 102 and continue with: 1026 / 243

On to step 5:
If we divide 1026 by 243, we get 4 and a remainder of 54.
Use 4 as the next digit of our solution. 
Result so far: 344.0
Subtracting 972 from 1026 leaves us with 54.
Fetch the next digit (7) from the dividend, attach it to 54 and continue: 547 / 243

Advancing to step 6:
If we divide 547 by 243, we get 2 and a remainder of 61.
The number 2 becomes the next digit in our result. 
Result so far: 3442.0
Subtracting 486 from 547 leaves us with 61.
Fetch the next digit (8) from the dividend, attach it to 61 and continue: 618 / 243

Going ahead to step 7:
If we divide 618 by 243, we get 2 and a remainder of 132.
The next digit of our result is 2. 
Result so far: 34422.0
Subtract 486 from 618 to get 132.
Include the next digit (0) from the dividend after 132, then repeat: 1320 / 243

Step 8:
243 goes into 1320 5 times with a remainder of 105.
The number 5 becomes the next digit in our result. 
Result so far: 344225.0
Subtracting 1215 from 1320 leaves us with 105.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1050, and continue the process.

On to step 9:
1050 divided by 243 is 4 with a remainder of 78.
Record the quotient 4 as the next digit in the result. 
Result so far: 344225.4
The remainder is 78 after subtracting 972 from 1050.
Since there are no more digits in the dividend, we add a zero to the remainder making it 780, and continue the process.

On to step 10:
243 can be fit into 780 3 times, resulting in a remainder of 51.
Record the quotient 3 as the next digit in the result. 
Result so far: 344225.43
If we subtract 729 from 780, we get 51.
Since there are no more digits in the dividend, we add a zero to the remainder making it 510, and continue the process.

Step 11:
243 can be fit into 510 2 times, resulting in a remainder of 24.
Put 2 as the next digit of the answer. 
Result so far: 344225.432
The remainder is 24 after subtracting 486 from 510.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

Going ahead to step 12:
If we divide 240 by 243, we get 0 and a remainder of 240.
Put 0 as the next digit of the answer. 
Result so far: 344225.432
If we subtract 0 from 240, we get 240.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2400, and continue the process.

Advancing to step 13:
2400 divided by 243 is 9 with a remainder of 213.
Record the quotient 9 as the next digit in the result. 
Result so far: 344225.43209
Deduct 2187 from 2400 and we're left with 213.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2130, and continue the process.

On to step 14:
2130 divided by 243 is 8 with a remainder of 186.
The next digit of our result is 8. 
Result so far: 344225.432098
Subtracting 1944 from 2130 leaves us with 186.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1860, and continue the process.

Let's proceed to step 15:
243 can be fit into 1860 7 times, resulting in a remainder of 159.
The next digit of our result is 7. 
Result so far: 344225.4320987
Subtract 1701 from 1860 to get 159.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1590, and continue the process.

Advancing to step 16:
243 can be fit into 1590 6 times, resulting in a remainder of 132.
Use 6 as the next digit of our solution. 
Result so far: 344225.43209876
The remainder is 132 after subtracting 1458 from 1590.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1320, and continue the process.

After the division, we end up with 344225.43209876 and a remainder of 1.32e-07.