13774531 ÷ 243 
We're looking to find how many times 243 goes into 13774531.

Step 1:
243 goes into 1 0 times with a remainder of 1.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we take 0 away from 1, we end up with 1.
Bring next digit (3) of the dividend behind the 1 and repeat the process: 13 / 243

Going ahead to step 2:
The number 243 fits into 13 0 times, leaving a remainder of 13.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 13 after subtracting 0 from 13.
Append the next digit (7) from the dividend to 13 and continue with: 137 / 243

On to step 3:
The number 243 fits into 137 0 times, leaving a remainder of 137.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 137, we end up with 137.
Fetch the next digit (7) from the dividend, attach it to 137 and continue: 1377 / 243

Advancing to step 4:
When dividing 1377 by 243, we get 5 with a remainder of 162.
Use 5 as the next digit of our solution. 
Result so far: 5.0
The remainder is 162 after subtracting 1215 from 1377.
Include the next digit (4) from the dividend after 162, then repeat: 1624 / 243

On to step 5:
When dividing 1624 by 243, we get 6 with a remainder of 166.
Use 6 as the next digit of our solution. 
Result so far: 56.0
If we subtract 1458 from 1624, we get 166.
Append the next digit (5) from the dividend to 166 and continue with: 1665 / 243

On to step 6:
1665 divided by 243 is 6 with a remainder of 207.
Write down 6 as next digit of the result. 
Result so far: 566.0
If we subtract 1458 from 1665, we get 207.
Take the next digit (3) from the dividend and append it to 207, then repeat: 2073 / 243

Advancing to step 7:
243 can be fit into 2073 8 times, resulting in a remainder of 129.
The next digit of our result is 8. 
Result so far: 5668.0
If we take 1944 away from 2073, we end up with 129.
Include the next digit (1) from the dividend after 129, then repeat: 1291 / 243

Moving on to step 8:
243 can be fit into 1291 5 times, resulting in a remainder of 76.
Write down 5 as next digit of the result. 
Result so far: 56685.0
Subtract 1215 from 1291 to get 76.
Since there are no more digits in the dividend, we add a zero to the remainder making it 760, and continue the process.

Moving on to step 9:
243 can be fit into 760 3 times, resulting in a remainder of 31.
Put 3 as the next digit of the answer. 
Result so far: 56685.3
Deduct 729 from 760 and we're left with 31.
Since there are no more digits in the dividend, we add a zero to the remainder making it 310, and continue the process.

Step 10:
243 can be fit into 310 1 times, resulting in a remainder of 67.
Put 1 as the next digit of the answer. 
Result so far: 56685.31
If we subtract 243 from 310, we get 67.
Since there are no more digits in the dividend, we add a zero to the remainder making it 670, and continue the process.

On to step 11:
243 goes into 670 2 times with a remainder of 184.
The number 2 becomes the next digit in our result. 
Result so far: 56685.312
If we subtract 486 from 670, we get 184.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1840, and continue the process.

Step 12:
243 can be fit into 1840 7 times, resulting in a remainder of 139.
Write down 7 as next digit of the result. 
Result so far: 56685.3127
Subtract 1701 from 1840 to get 139.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1390, and continue the process.

Step 13:
If we divide 1390 by 243, we get 5 and a remainder of 175.
Use 5 as the next digit of our solution. 
Result so far: 56685.31275
If we subtract 1215 from 1390, we get 175.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1750, and continue the process.

Moving on to step 14:
If we divide 1750 by 243, we get 7 and a remainder of 49.
Put 7 as the next digit of the answer. 
Result so far: 56685.312757
The remainder is 49 after subtracting 1701 from 1750.
Since there are no more digits in the dividend, we add a zero to the remainder making it 490, and continue the process.

Advancing to step 15:
243 can be fit into 490 2 times, resulting in a remainder of 4.
Use 2 as the next digit of our solution. 
Result so far: 56685.3127572
If we take 486 away from 490, we end up with 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Advancing to step 16:
40 divided by 243 is 0 with a remainder of 40.
Record the quotient 0 as the next digit in the result. 
Result so far: 56685.3127572
Subtracting 0 from 40 leaves us with 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

The final outcome is 56685.3127572, with a leftover of 4e-08.