Let's divide 54121006 by 900
We want to divide 54121006 by 900.

Advancing to step 1:
If we divide 5 by 900, we get 0 and a remainder of 5.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 5, we end up with 5.
Append the next digit (4) from the dividend to 5 and continue with: 54 / 900

Advancing to step 2:
The number 900 fits into 54 0 times, leaving a remainder of 54.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 54, we end up with 54.
Bring next digit (1) of the dividend behind the 54 and repeat the process: 541 / 900

Let's proceed to step 3:
When dividing 541 by 900, we get 0 with a remainder of 541.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we subtract 0 from 541, we get 541.
Append the next digit (2) from the dividend to 541 and continue with: 5412 / 900

Step 4:
5412 divided by 900 is 6 with a remainder of 12.
The next digit of our result is 6. 
Result so far: 6.0
Subtract 5400 from 5412 to get 12.
Bring next digit (1) of the dividend behind the 12 and repeat the process: 121 / 900

Let's proceed to step 5:
900 can be fit into 121 0 times, resulting in a remainder of 121.
The number 0 becomes the next digit in our result. 
Result so far: 60.0
If we take 0 away from 121, we end up with 121.
Bring next digit (0) of the dividend behind the 121 and repeat the process: 1210 / 900

Advancing to step 6:
900 goes into 1210 1 times with a remainder of 310.
Use 1 as the next digit of our solution. 
Result so far: 601.0
The remainder is 310 after subtracting 900 from 1210.
Fetch the next digit (0) from the dividend, attach it to 310 and continue: 3100 / 900

Going ahead to step 7:
If we divide 3100 by 900, we get 3 and a remainder of 400.
Write down 3 as next digit of the result. 
Result so far: 6013.0
The remainder is 400 after subtracting 2700 from 3100.
Grab the next digit (6) from the dividend, add it to 400, then carry on: 4006 / 900

On to step 8:
The number 900 fits into 4006 4 times, leaving a remainder of 406.
Record the quotient 4 as the next digit in the result. 
Result so far: 60134.0
Subtracting 3600 from 4006 leaves us with 406.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4060, and continue the process.

Step 9:
900 goes into 4060 4 times with a remainder of 460.
Write down 4 as next digit of the result. 
Result so far: 60134.4
Subtract 3600 from 4060 to get 460.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4600, and continue the process.

Going ahead to step 10:
4600 divided by 900 is 5 with a remainder of 100.
The number 5 becomes the next digit in our result. 
Result so far: 60134.45
The remainder is 100 after subtracting 4500 from 4600.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1000, and continue the process.

Going ahead to step 11:
1000 divided by 900 is 1 with a remainder of 100.
The number 1 becomes the next digit in our result. 
Result so far: 60134.451
Subtract 900 from 1000 to get 100.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1000, and continue the process.

Going ahead to step 12:
900 can be fit into 1000 1 times, resulting in a remainder of 100.
Record the quotient 1 as the next digit in the result. 
Result so far: 60134.4511
Deduct 900 from 1000 and we're left with 100.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1000, and continue the process.

Our division results in 60134.4511 with a remaining 0.001.