We look at the division of 54026321 by 405 
We want to divide 54026321 by 405.

Moving on to step 1:
405 goes into 5 0 times with a remainder of 5.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 5, we end up with 5.
Take the next digit (4) from the dividend and append it to 5, then repeat: 54 / 405

Step 2:
When dividing 54 by 405, we get 0 with a remainder of 54.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 54 to get 54.
Fetch the next digit (0) from the dividend, attach it to 54 and continue: 540 / 405

On to step 3:
The number 405 fits into 540 1 times, leaving a remainder of 135.
Write down 1 as next digit of the result. 
Result so far: 1.0
Subtracting 405 from 540 leaves us with 135.
Append the next digit (2) from the dividend to 135 and continue with: 1352 / 405

Step 4:
405 can be fit into 1352 3 times, resulting in a remainder of 137.
Use 3 as the next digit of our solution. 
Result so far: 13.0
The remainder is 137 after subtracting 1215 from 1352.
Append the next digit (6) from the dividend to 137 and continue with: 1376 / 405

On to step 5:
1376 divided by 405 is 3 with a remainder of 161.
Use 3 as the next digit of our solution. 
Result so far: 133.0
If we take 1215 away from 1376, we end up with 161.
Fetch the next digit (3) from the dividend, attach it to 161 and continue: 1613 / 405

Let's proceed to step 6:
1613 divided by 405 is 3 with a remainder of 398.
Write down 3 as next digit of the result. 
Result so far: 1333.0
Subtracting 1215 from 1613 leaves us with 398.
Include the next digit (2) from the dividend after 398, then repeat: 3982 / 405

Going ahead to step 7:
405 can be fit into 3982 9 times, resulting in a remainder of 337.
Put 9 as the next digit of the answer. 
Result so far: 13339.0
Subtracting 3645 from 3982 leaves us with 337.
Include the next digit (1) from the dividend after 337, then repeat: 3371 / 405

Advancing to step 8:
If we divide 3371 by 405, we get 8 and a remainder of 131.
Put 8 as the next digit of the answer. 
Result so far: 133398.0
The remainder is 131 after subtracting 3240 from 3371.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1310, and continue the process.

Step 9:
The number 405 fits into 1310 3 times, leaving a remainder of 95.
The next digit of our result is 3. 
Result so far: 133398.3
The remainder is 95 after subtracting 1215 from 1310.
Since there are no more digits in the dividend, we add a zero to the remainder making it 950, and continue the process.

Moving on to step 10:
The number 405 fits into 950 2 times, leaving a remainder of 140.
Record the quotient 2 as the next digit in the result. 
Result so far: 133398.32
Deduct 810 from 950 and we're left with 140.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1400, and continue the process.

Let's proceed to step 11:
The number 405 fits into 1400 3 times, leaving a remainder of 185.
The number 3 becomes the next digit in our result. 
Result so far: 133398.323
The remainder is 185 after subtracting 1215 from 1400.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1850, and continue the process.

Moving on to step 12:
If we divide 1850 by 405, we get 4 and a remainder of 230.
Use 4 as the next digit of our solution. 
Result so far: 133398.3234
The remainder is 230 after subtracting 1620 from 1850.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2300, and continue the process.

Step 13:
405 can be fit into 2300 5 times, resulting in a remainder of 275.
Use 5 as the next digit of our solution. 
Result so far: 133398.32345
Subtract 2025 from 2300 to get 275.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2750, and continue the process.

Advancing to step 14:
2750 divided by 405 is 6 with a remainder of 320.
The number 6 becomes the next digit in our result. 
Result so far: 133398.323456
Deduct 2430 from 2750 and we're left with 320.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3200, and continue the process.

Let's proceed to step 15:
3200 divided by 405 is 7 with a remainder of 365.
Record the quotient 7 as the next digit in the result. 
Result so far: 133398.3234567
If we take 2835 away from 3200, we end up with 365.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3650, and continue the process.

Let's proceed to step 16:
3650 divided by 405 is 9 with a remainder of 5.
The number 9 becomes the next digit in our result. 
Result so far: 133398.32345679
Deduct 3645 from 3650 and we're left with 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

In conclusion, the division gives 133398.32345679 with a balance of 5e-09.