54756352 ÷ 403 
Our goal is to divide 54756352 by 403.

Advancing to step 1:
If we divide 5 by 403, we get 0 and a remainder of 5.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtracting 0 from 5 leaves us with 5.
Append the next digit (4) from the dividend to 5 and continue with: 54 / 403

Moving on to step 2:
403 goes into 54 0 times with a remainder of 54.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 54, we end up with 54.
Grab the next digit (7) from the dividend, add it to 54, then carry on: 547 / 403

Step 3:
If we divide 547 by 403, we get 1 and a remainder of 144.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
If we take 403 away from 547, we end up with 144.
Append the next digit (5) from the dividend to 144 and continue with: 1445 / 403

Advancing to step 4:
1445 divided by 403 is 3 with a remainder of 236.
Record the quotient 3 as the next digit in the result. 
Result so far: 13.0
If we subtract 1209 from 1445, we get 236.
Append the next digit (6) from the dividend to 236 and continue with: 2366 / 403

On to step 5:
If we divide 2366 by 403, we get 5 and a remainder of 351.
Use 5 as the next digit of our solution. 
Result so far: 135.0
Subtract 2015 from 2366 to get 351.
Bring next digit (3) of the dividend behind the 351 and repeat the process: 3513 / 403

Advancing to step 6:
403 goes into 3513 8 times with a remainder of 289.
The next digit of our result is 8. 
Result so far: 1358.0
Deduct 3224 from 3513 and we're left with 289.
Append the next digit (5) from the dividend to 289 and continue with: 2895 / 403

Let's proceed to step 7:
2895 divided by 403 is 7 with a remainder of 74.
Put 7 as the next digit of the answer. 
Result so far: 13587.0
Deduct 2821 from 2895 and we're left with 74.
Append the next digit (2) from the dividend to 74 and continue with: 742 / 403

Step 8:
The number 403 fits into 742 1 times, leaving a remainder of 339.
The number 1 becomes the next digit in our result. 
Result so far: 135871.0
Deduct 403 from 742 and we're left with 339.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3390, and continue the process.

On to step 9:
403 can be fit into 3390 8 times, resulting in a remainder of 166.
The next digit of our result is 8. 
Result so far: 135871.8
Subtracting 3224 from 3390 leaves us with 166.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1660, and continue the process.

On to step 10:
403 goes into 1660 4 times with a remainder of 48.
Use 4 as the next digit of our solution. 
Result so far: 135871.84
If we subtract 1612 from 1660, we get 48.
Since there are no more digits in the dividend, we add a zero to the remainder making it 480, and continue the process.

On to step 11:
When dividing 480 by 403, we get 1 with a remainder of 77.
Put 1 as the next digit of the answer. 
Result so far: 135871.841
Subtract 403 from 480 to get 77.
Since there are no more digits in the dividend, we add a zero to the remainder making it 770, and continue the process.

Let's proceed to step 12:
If we divide 770 by 403, we get 1 and a remainder of 367.
Record the quotient 1 as the next digit in the result. 
Result so far: 135871.8411
Subtracting 403 from 770 leaves us with 367.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3670, and continue the process.

Our division results in 135871.8411 with a remaining 0.00367.