54512372 ÷ 990 
Let's see how many times 990 fits into 54512372.

Moving on to step 1:
990 can be fit into 5 0 times, resulting in a remainder of 5.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 5 leaves us with 5.
Include the next digit (4) from the dividend after 5, then repeat: 54 / 990

Let's proceed to step 2:
If we divide 54 by 990, we get 0 and 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.
Append the next digit (5) from the dividend to 54 and continue with: 545 / 990

Going ahead to step 3:
990 goes into 545 0 times with a remainder of 545.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 545 after subtracting 0 from 545.
Fetch the next digit (1) from the dividend, attach it to 545 and continue: 5451 / 990

Step 4:
5451 divided by 990 is 5 with a remainder of 501.
Record the quotient 5 as the next digit in the result. 
Result so far: 5.0
The remainder is 501 after subtracting 4950 from 5451.
Take the next digit (2) from the dividend and append it to 501, then repeat: 5012 / 990

Moving on to step 5:
5012 divided by 990 is 5 with a remainder of 62.
Record the quotient 5 as the next digit in the result. 
Result so far: 55.0
If we subtract 4950 from 5012, we get 62.
Grab the next digit (3) from the dividend, add it to 62, then carry on: 623 / 990

Let's proceed to step 6:
If we divide 623 by 990, we get 0 and a remainder of 623.
Use 0 as the next digit of our solution. 
Result so far: 550.0
If we subtract 0 from 623, we get 623.
Append the next digit (7) from the dividend to 623 and continue with: 6237 / 990

Moving on to step 7:
6237 divided by 990 is 6 with a remainder of 297.
Put 6 as the next digit of the answer. 
Result so far: 5506.0
Subtracting 5940 from 6237 leaves us with 297.
Append the next digit (2) from the dividend to 297 and continue with: 2972 / 990

Advancing to step 8:
990 can be fit into 2972 3 times, resulting in a remainder of 2.
Use 3 as the next digit of our solution. 
Result so far: 55063.0
The remainder is 2 after subtracting 2970 from 2972.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Step 9:
20 divided by 990 is 0 with a remainder of 20.
Use 0 as the next digit of our solution. 
Result so far: 55063.0
Deduct 0 from 20 and we're left with 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Step 10:
The number 990 fits into 200 0 times, leaving a remainder of 200.
The next digit of our result is 0. 
Result so far: 55063.0
If we take 0 away from 200, we end up with 200.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2000, and continue the process.

In conclusion, the division gives 55063.0 with a balance of 0.2.