450912 ÷ 51 
Let's see how many times 51 fits into 450912.

Going ahead to step 1:
4 divided by 51 is 0 with a remainder of 4.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 4 after subtracting 0 from 4.
Grab the next digit (5) from the dividend, add it to 4, then carry on: 45 / 51

On to step 2:
51 can be fit into 45 0 times, resulting in a remainder of 45.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 45 after subtracting 0 from 45.
Take the next digit (0) from the dividend and append it to 45, then repeat: 450 / 51

Let's proceed to step 3:
If we divide 450 by 51, we get 8 and a remainder of 42.
Record the quotient 8 as the next digit in the result. 
Result so far: 8.0
Subtract 408 from 450 to get 42.
Fetch the next digit (9) from the dividend, attach it to 42 and continue: 429 / 51

Let's proceed to step 4:
When dividing 429 by 51, we get 8 with a remainder of 21.
Write down 8 as next digit of the result. 
Result so far: 88.0
Subtracting 408 from 429 leaves us with 21.
Grab the next digit (1) from the dividend, add it to 21, then carry on: 211 / 51

Advancing to step 5:
If we divide 211 by 51, we get 4 and a remainder of 7.
The next digit of our result is 4. 
Result so far: 884.0
If we take 204 away from 211, we end up with 7.
Grab the next digit (2) from the dividend, add it to 7, then carry on: 72 / 51

Step 6:
51 goes into 72 1 times with a remainder of 21.
Use 1 as the next digit of our solution. 
Result so far: 8841.0
The remainder is 21 after subtracting 51 from 72.
Since there are no more digits in the dividend, we add a zero to the remainder making it 210, and continue the process.

Step 7:
51 goes into 210 4 times with a remainder of 6.
The next digit of our result is 4. 
Result so far: 8841.4
If we subtract 204 from 210, we get 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Advancing to step 8:
If we divide 60 by 51, we get 1 and a remainder of 9.
The number 1 becomes the next digit in our result. 
Result so far: 8841.41
Subtract 51 from 60 to get 9.
Since there are no more digits in the dividend, we add a zero to the remainder making it 90, and continue the process.

Moving on to step 9:
90 divided by 51 is 1 with a remainder of 39.
The next digit of our result is 1. 
Result so far: 8841.411
The remainder is 39 after subtracting 51 from 90.
Since there are no more digits in the dividend, we add a zero to the remainder making it 390, and continue the process.

The final outcome is 8841.411, with a leftover of 0.0039.