We look at the division of 8454896 by 420 
We're looking to find how many times 420 goes into 8454896.

Moving on to step 1:
If we divide 8 by 420, we get 0 and a remainder of 8.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 8, we get 8.
Include the next digit (4) from the dividend after 8, then repeat: 84 / 420

Moving on to step 2:
The number 420 fits into 84 0 times, leaving a remainder of 84.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
The remainder is 84 after subtracting 0 from 84.
Bring next digit (5) of the dividend behind the 84 and repeat the process: 845 / 420

Step 3:
The number 420 fits into 845 2 times, leaving a remainder of 5.
The next digit of our result is 2. 
Result so far: 2.0
If we take 840 away from 845, we end up with 5.
Take the next digit (4) from the dividend and append it to 5, then repeat: 54 / 420

Going ahead to step 4:
54 divided by 420 is 0 with a remainder of 54.
Write down 0 as next digit of the result. 
Result so far: 20.0
Subtract 0 from 54 to get 54.
Append the next digit (8) from the dividend to 54 and continue with: 548 / 420

Going ahead to step 5:
420 goes into 548 1 times with a remainder of 128.
Write down 1 as next digit of the result. 
Result so far: 201.0
Subtracting 420 from 548 leaves us with 128.
Bring next digit (9) of the dividend behind the 128 and repeat the process: 1289 / 420

Advancing to step 6:
The number 420 fits into 1289 3 times, leaving a remainder of 29.
The next digit of our result is 3. 
Result so far: 2013.0
The remainder is 29 after subtracting 1260 from 1289.
Include the next digit (6) from the dividend after 29, then repeat: 296 / 420

Moving on to step 7:
The number 420 fits into 296 0 times, leaving a remainder of 296.
Put 0 as the next digit of the answer. 
Result so far: 20130.0
Deduct 0 from 296 and we're left with 296.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2960, and continue the process.

On to step 8:
2960 divided by 420 is 7 with a remainder of 20.
The number 7 becomes the next digit in our result. 
Result so far: 20130.7
If we subtract 2940 from 2960, we get 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

On to step 9:
If we divide 200 by 420, we get 0 and a remainder of 200.
Write down 0 as next digit of the result. 
Result so far: 20130.7
Subtracting 0 from 200 leaves us 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.

Step 10:
If we divide 2000 by 420, we get 4 and a remainder of 320.
Record the quotient 4 as the next digit in the result. 
Result so far: 20130.704
If we take 1680 away from 2000, we end up with 320.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3200, and continue the process.

On to step 11:
420 can be fit into 3200 7 times, resulting in a remainder of 260.
Put 7 as the next digit of the answer. 
Result so far: 20130.7047
If we subtract 2940 from 3200, we get 260.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2600, and continue the process.

Let's proceed to step 12:
420 can be fit into 2600 6 times, resulting in a remainder of 80.
Use 6 as the next digit of our solution. 
Result so far: 20130.70476
Subtract 2520 from 2600 to get 80.
Since there are no more digits in the dividend, we add a zero to the remainder making it 800, and continue the process.

Advancing to step 13:
If we divide 800 by 420, we get 1 and a remainder of 380.
Put 1 as the next digit of the answer. 
Result so far: 20130.704761
If we take 420 away from 800, we end up with 380.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3800, and continue the process.

Advancing to step 14:
420 can be fit into 3800 9 times, resulting in a remainder of 20.
The number 9 becomes the next digit in our result. 
Result so far: 20130.7047619
The remainder is 20 after subtracting 3780 from 3800.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Let's proceed to step 15:
420 can be fit into 200 0 times, resulting in a remainder of 200.
The number 0 becomes the next digit in our result. 
Result so far: 20130.7047619
If we subtract 0 from 200, we get 200.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2000, and continue the process.

The final outcome is 20130.7047619, with a leftover of 2e-07.