54121123 divided by 452 
We want to divide 54121123 by 452.

Step 1:
452 goes into 5 0 times with a remainder of 5.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 5 to get 5.
Bring next digit (4) of the dividend behind the 5 and repeat the process: 54 / 452

Going ahead to step 2:
The number 452 fits into 54 0 times, leaving a remainder of 54.
The next digit of our result is 0. 
Result so far: 0.0
Subtracting 0 from 54 leaves us with 54.
Take the next digit (1) from the dividend and append it to 54, then repeat: 541 / 452

Moving on to step 3:
When dividing 541 by 452, we get 1 with a remainder of 89.
Write down 1 as next digit of the result. 
Result so far: 1.0
The remainder is 89 after subtracting 452 from 541.
Take the next digit (2) from the dividend and append it to 89, then repeat: 892 / 452

Step 4:
892 divided by 452 is 1 with a remainder of 440.
Put 1 as the next digit of the answer. 
Result so far: 11.0
The remainder is 440 after subtracting 452 from 892.
Grab the next digit (1) from the dividend, add it to 440, then carry on: 4401 / 452

Step 5:
When dividing 4401 by 452, we get 9 with a remainder of 333.
The number 9 becomes the next digit in our result. 
Result so far: 119.0
Deduct 4068 from 4401 and we're left with 333.
Include the next digit (1) from the dividend after 333, then repeat: 3331 / 452

On to step 6:
3331 divided by 452 is 7 with a remainder of 167.
Record the quotient 7 as the next digit in the result. 
Result so far: 1197.0
Subtract 3164 from 3331 to get 167.
Include the next digit (2) from the dividend after 167, then repeat: 1672 / 452

Moving on to step 7:
The number 452 fits into 1672 3 times, leaving a remainder of 316.
Use 3 as the next digit of our solution. 
Result so far: 11973.0
Deduct 1356 from 1672 and we're left with 316.
Take the next digit (3) from the dividend and append it to 316, then repeat: 3163 / 452

Step 8:
The number 452 fits into 3163 6 times, leaving a remainder of 451.
The next digit of our result is 6. 
Result so far: 119736.0
Subtract 2712 from 3163 to get 451.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4510, and continue the process.

On to step 9:
452 can be fit into 4510 9 times, resulting in a remainder of 442.
Use 9 as the next digit of our solution. 
Result so far: 119736.9
Subtract 4068 from 4510 to get 442.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4420, and continue the process.

Let's proceed to step 10:
4420 divided by 452 is 9 with a remainder of 352.
Put 9 as the next digit of the answer. 
Result so far: 119736.99
Subtract 4068 from 4420 to get 352.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3520, and continue the process.

The quotient of the division is 119736.99, and the remainder is 0.352.