We're dividing 480160 by 21 
We're looking to find how many times 21 goes into 480160.

On to step 1:
4 divided by 21 is 0 with a remainder of 4.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 4, we end up with 4.
Include the next digit (8) from the dividend after 4, then repeat: 48 / 21

Moving on to step 2:
21 goes into 48 2 times with a remainder of 6.
The next digit of our result is 2. 
Result so far: 2.0
Subtract 42 from 48 to get 6.
Append the next digit (0) from the dividend to 6 and continue with: 60 / 21

Going ahead to step 3:
21 can be fit into 60 2 times, resulting in a remainder of 18.
Record the quotient 2 as the next digit in the result. 
Result so far: 22.0
Subtracting 42 from 60 leaves us with 18.
Grab the next digit (1) from the dividend, add it to 18, then carry on: 181 / 21

Let's proceed to step 4:
The number 21 fits into 181 8 times, leaving a remainder of 13.
The number 8 becomes the next digit in our result. 
Result so far: 228.0
The remainder is 13 after subtracting 168 from 181.
Include the next digit (6) from the dividend after 13, then repeat: 136 / 21

Moving on to step 5:
136 divided by 21 is 6 with a remainder of 10.
Use 6 as the next digit of our solution. 
Result so far: 2286.0
The remainder is 10 after subtracting 126 from 136.
Append the next digit (0) from the dividend to 10 and continue with: 100 / 21

Going ahead to step 6:
When dividing 100 by 21, we get 4 with a remainder of 16.
Write down 4 as next digit of the result. 
Result so far: 22864.0
The remainder is 16 after subtracting 84 from 100.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

On to step 7:
When dividing 160 by 21, we get 7 with a remainder of 13.
The number 7 becomes the next digit in our result. 
Result so far: 22864.7
Subtract 147 from 160 to get 13.
Since there are no more digits in the dividend, we add a zero to the remainder making it 130, and continue the process.

Step 8:
21 goes into 130 6 times with a remainder of 4.
The next digit of our result is 6. 
Result so far: 22864.76
The remainder is 4 after subtracting 126 from 130.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

On to step 9:
When dividing 40 by 21, we get 1 with a remainder of 19.
Record the quotient 1 as the next digit in the result. 
Result so far: 22864.761
Subtracting 21 from 40 leaves us with 19.
Since there are no more digits in the dividend, we add a zero to the remainder making it 190, and continue the process.

Moving on to step 10:
When dividing 190 by 21, we get 9 with a remainder of 1.
The number 9 becomes the next digit in our result. 
Result so far: 22864.7619
Deduct 189 from 190 and we're left with 1.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

Going ahead to step 11:
If we divide 10 by 21, we get 0 and a remainder of 10.
Record the quotient 0 as the next digit in the result. 
Result so far: 22864.7619
If we take 0 away from 10, we end up with 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Step 12:
If we divide 100 by 21, we get 4 and a remainder of 16.
The next digit of our result is 4. 
Result so far: 22864.761904
The remainder is 16 after subtracting 84 from 100.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Advancing to step 13:
160 divided by 21 is 7 with a remainder of 13.
Write down 7 as next digit of the result. 
Result so far: 22864.7619047
The remainder is 13 after subtracting 147 from 160.
Since there are no more digits in the dividend, we add a zero to the remainder making it 130, and continue the process.

Moving on to step 14:
If we divide 130 by 21, we get 6 and a remainder of 4.
Put 6 as the next digit of the answer. 
Result so far: 22864.76190476
If we subtract 126 from 130, we get 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

The final outcome is 22864.76190476, with a leftover of 4e-09.