Let's divide 228506 by 21
We want to figure out the number of times 228506 can be divided by 21.

Moving on to step 1:
21 goes into 2 0 times with a remainder of 2.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 2, we get 2.
Take the next digit (2) from the dividend and append it to 2, then repeat: 22 / 21

Moving on to step 2:
If we divide 22 by 21, we get 1 and a remainder of 1.
The next digit of our result is 1. 
Result so far: 1.0
If we take 21 away from 22, we end up with 1.
Take the next digit (8) from the dividend and append it to 1, then repeat: 18 / 21

Advancing to step 3:
When dividing 18 by 21, we get 0 with a remainder of 18.
The next digit of our result is 0. 
Result so far: 10.0
If we take 0 away from 18, we end up with 18.
Bring next digit (5) of the dividend behind the 18 and repeat the process: 185 / 21

Advancing to step 4:
If we divide 185 by 21, we get 8 and a remainder of 17.
Write down 8 as next digit of the result. 
Result so far: 108.0
If we take 168 away from 185, we end up with 17.
Bring next digit (0) of the dividend behind the 17 and repeat the process: 170 / 21

Advancing to step 5:
When dividing 170 by 21, we get 8 with a remainder of 2.
Record the quotient 8 as the next digit in the result. 
Result so far: 1088.0
If we subtract 168 from 170, we get 2.
Take the next digit (6) from the dividend and append it to 2, then repeat: 26 / 21

On to step 6:
21 goes into 26 1 times with a remainder of 5.
The number 1 becomes the next digit in our result. 
Result so far: 10881.0
The remainder is 5 after subtracting 21 from 26.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

Moving on to step 7:
If we divide 50 by 21, we get 2 and a remainder of 8.
The number 2 becomes the next digit in our result. 
Result so far: 10881.2
If we subtract 42 from 50, we get 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Step 8:
21 can be fit into 80 3 times, resulting in a remainder of 17.
Put 3 as the next digit of the answer. 
Result so far: 10881.23
Subtracting 63 from 80 leaves us with 17.
Since there are no more digits in the dividend, we add a zero to the remainder making it 170, and continue the process.

On to step 9:
21 goes into 170 8 times with a remainder of 2.
Write down 8 as next digit of the result. 
Result so far: 10881.238
The remainder is 2 after subtracting 168 from 170.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Step 10:
21 goes into 20 0 times with a remainder of 20.
Use 0 as the next digit of our solution. 
Result so far: 10881.238
If we take 0 away from 20, we end up 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.

On to step 11:
The number 21 fits into 200 9 times, leaving a remainder of 11.
Use 9 as the next digit of our solution. 
Result so far: 10881.23809
Subtract 189 from 200 to get 11.
Since there are no more digits in the dividend, we add a zero to the remainder making it 110, and continue the process.

Going ahead to step 12:
21 can be fit into 110 5 times, resulting in a remainder of 5.
Put 5 as the next digit of the answer. 
Result so far: 10881.238095
If we take 105 away from 110, we end up with 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

On to step 13:
50 divided by 21 is 2 with a remainder of 8.
Record the quotient 2 as the next digit in the result. 
Result so far: 10881.2380952
Subtract 42 from 50 to get 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Step 14:
The number 21 fits into 80 3 times, leaving a remainder of 17.
The number 3 becomes the next digit in our result. 
Result so far: 10881.23809523
Subtracting 63 from 80 leaves us with 17.
Since there are no more digits in the dividend, we add a zero to the remainder making it 170, and continue the process.

After the division, we end up with 10881.23809523 and a remainder of 1.7e-08.