13644971 ÷ 54 
Our goal is to divide 13644971 by 54.

Going ahead to step 1:
The number 54 fits into 1 0 times, leaving a remainder of 1.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 1 to get 1.
Bring next digit (3) of the dividend behind the 1 and repeat the process: 13 / 54

Step 2:
When dividing 13 by 54, we get 0 with a remainder of 13.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 13, we end up with 13.
Include the next digit (6) from the dividend after 13, then repeat: 136 / 54

Moving on to step 3:
When dividing 136 by 54, we get 2 with a remainder of 28.
The next digit of our result is 2. 
Result so far: 2.0
Subtract 108 from 136 to get 28.
Fetch the next digit (4) from the dividend, attach it to 28 and continue: 284 / 54

Going ahead to step 4:
54 can be fit into 284 5 times, resulting in a remainder of 14.
The next digit of our result is 5. 
Result so far: 25.0
Deduct 270 from 284 and we're left with 14.
Append the next digit (4) from the dividend to 14 and continue with: 144 / 54

Advancing to step 5:
The number 54 fits into 144 2 times, leaving a remainder of 36.
Write down 2 as next digit of the result. 
Result so far: 252.0
Subtracting 108 from 144 leaves us with 36.
Grab the next digit (9) from the dividend, add it to 36, then carry on: 369 / 54

On to step 6:
54 goes into 369 6 times with a remainder of 45.
Use 6 as the next digit of our solution. 
Result so far: 2526.0
The remainder is 45 after subtracting 324 from 369.
Append the next digit (7) from the dividend to 45 and continue with: 457 / 54

Advancing to step 7:
54 can be fit into 457 8 times, resulting in a remainder of 25.
Use 8 as the next digit of our solution. 
Result so far: 25268.0
If we subtract 432 from 457, we get 25.
Grab the next digit (1) from the dividend, add it to 25, then carry on: 251 / 54

Let's proceed to step 8:
54 goes into 251 4 times with a remainder of 35.
The number 4 becomes the next digit in our result. 
Result so far: 252684.0
Deduct 216 from 251 and we're left with 35.
Since there are no more digits in the dividend, we add a zero to the remainder making it 350, and continue the process.

Step 9:
350 divided by 54 is 6 with a remainder of 26.
Use 6 as the next digit of our solution. 
Result so far: 252684.6
Subtracting 324 from 350 leaves us with 26.
Since there are no more digits in the dividend, we add a zero to the remainder making it 260, and continue the process.

Advancing to step 10:
54 goes into 260 4 times with a remainder of 44.
The next digit of our result is 4. 
Result so far: 252684.64
If we take 216 away from 260, we end up with 44.
Since there are no more digits in the dividend, we add a zero to the remainder making it 440, and continue the process.

Advancing to step 11:
54 can be fit into 440 8 times, resulting in a remainder of 8.
Put 8 as the next digit of the answer. 
Result so far: 252684.648
The remainder is 8 after subtracting 432 from 440.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Moving on to step 12:
54 can be fit into 80 1 times, resulting in a remainder of 26.
Use 1 as the next digit of our solution. 
Result so far: 252684.6481
If we subtract 54 from 80, we get 26.
Since there are no more digits in the dividend, we add a zero to the remainder making it 260, and continue the process.

Step 13:
The number 54 fits into 260 4 times, leaving a remainder of 44.
Record the quotient 4 as the next digit in the result. 
Result so far: 252684.64814
Subtract 216 from 260 to get 44.
Since there are no more digits in the dividend, we add a zero to the remainder making it 440, and continue the process.

Going ahead to step 14:
440 divided by 54 is 8 with a remainder of 8.
The next digit of our result is 8. 
Result so far: 252684.648148
The remainder is 8 after subtracting 432 from 440.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Step 15:
80 divided by 54 is 1 with a remainder of 26.
Put 1 as the next digit of the answer. 
Result so far: 252684.6481481
If we subtract 54 from 80, we get 26.
Since there are no more digits in the dividend, we add a zero to the remainder making it 260, and continue the process.

Step 16:
54 goes into 260 4 times with a remainder of 44.
The number 4 becomes the next digit in our result. 
Result so far: 252684.64814814
Deduct 216 from 260 and we're left with 44.
Since there are no more digits in the dividend, we add a zero to the remainder making it 440, and continue the process.

The final outcome is 252684.64814814, with a leftover of 4.4e-08.