54011237 ÷ 452 
We're looking to find how many times 452 goes into 54011237.

Let's proceed to step 1:
The number 452 fits into 5 0 times, leaving a remainder of 5.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 5 and we're left with 5.
Grab the next digit (4) from the dividend, add it to 5, then carry on: 54 / 452

On to step 2:
54 divided by 452 is 0 with a remainder of 54.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 54 after subtracting 0 from 54.
Append the next digit (0) from the dividend to 54 and continue with: 540 / 452

Step 3:
540 divided by 452 is 1 with a remainder of 88.
The next digit of our result is 1. 
Result so far: 1.0
If we take 452 away from 540, we end up with 88.
Include the next digit (1) from the dividend after 88, then repeat: 881 / 452

Advancing to step 4:
When dividing 881 by 452, we get 1 with a remainder of 429.
The number 1 becomes the next digit in our result. 
Result so far: 11.0
Subtract 452 from 881 to get 429.
Grab the next digit (1) from the dividend, add it to 429, then carry on: 4291 / 452

On to step 5:
4291 divided by 452 is 9 with a remainder of 223.
The number 9 becomes the next digit in our result. 
Result so far: 119.0
The remainder is 223 after subtracting 4068 from 4291.
Include the next digit (2) from the dividend after 223, then repeat: 2232 / 452

On to step 6:
When dividing 2232 by 452, we get 4 with a remainder of 424.
Write down 4 as next digit of the result. 
Result so far: 1194.0
If we subtract 1808 from 2232, we get 424.
Grab the next digit (3) from the dividend, add it to 424, then carry on: 4243 / 452

Advancing to step 7:
4243 divided by 452 is 9 with a remainder of 175.
Put 9 as the next digit of the answer. 
Result so far: 11949.0
If we subtract 4068 from 4243, we get 175.
Grab the next digit (7) from the dividend, add it to 175, then carry on: 1757 / 452

Advancing to step 8:
452 can be fit into 1757 3 times, resulting in a remainder of 401.
Put 3 as the next digit of the answer. 
Result so far: 119493.0
If we take 1356 away from 1757, we end up with 401.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4010, and continue the process.

Step 9:
452 goes into 4010 8 times with a remainder of 394.
Use 8 as the next digit of our solution. 
Result so far: 119493.8
The remainder is 394 after subtracting 3616 from 4010.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3940, and continue the process.

Moving on to step 10:
The number 452 fits into 3940 8 times, leaving a remainder of 324.
Record the quotient 8 as the next digit in the result. 
Result so far: 119493.88
If we subtract 3616 from 3940, we get 324.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3240, and continue the process.

The final outcome is 119493.88, with a leftover of 0.324.