We divide 248596 by 21
We're looking to find how many times 21 goes into 248596.

Step 1:
21 can be fit into 2 0 times, resulting in a remainder of 2.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 2 leaves us with 2.
Bring next digit (4) of the dividend behind the 2 and repeat the process: 24 / 21

Step 2:
21 can be fit into 24 1 times, resulting in a remainder of 3.
Use 1 as the next digit of our solution. 
Result so far: 1.0
Subtracting 21 from 24 leaves us with 3.
Append the next digit (8) from the dividend to 3 and continue with: 38 / 21

Going ahead to step 3:
When dividing 38 by 21, we get 1 with a remainder of 17.
Put 1 as the next digit of the answer. 
Result so far: 11.0
Subtract 21 from 38 to get 17.
Bring next digit (5) of the dividend behind the 17 and repeat the process: 175 / 21

Step 4:
The number 21 fits into 175 8 times, leaving a remainder of 7.
Use 8 as the next digit of our solution. 
Result so far: 118.0
Deduct 168 from 175 and we're left with 7.
Append the next digit (9) from the dividend to 7 and continue with: 79 / 21

Step 5:
When dividing 79 by 21, we get 3 with a remainder of 16.
The number 3 becomes the next digit in our result. 
Result so far: 1183.0
If we take 63 away from 79, we end up with 16.
Include the next digit (6) from the dividend after 16, then repeat: 166 / 21

Step 6:
The number 21 fits into 166 7 times, leaving a remainder of 19.
Use 7 as the next digit of our solution. 
Result so far: 11837.0
The remainder is 19 after subtracting 147 from 166.
Since there are no more digits in the dividend, we add a zero to the remainder making it 190, and continue the process.

Step 7:
21 can be fit into 190 9 times, resulting in a remainder of 1.
Use 9 as the next digit of our solution. 
Result so far: 11837.9
Subtracting 189 from 190 leaves us 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.

On to step 8:
If we divide 10 by 21, we get 0 and a remainder of 10.
The number 0 becomes the next digit in our result. 
Result so far: 11837.9
The remainder is 10 after subtracting 0 from 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 9:
21 goes into 100 4 times with a remainder of 16.
Put 4 as the next digit of the answer. 
Result so far: 11837.904
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 10:
160 divided by 21 is 7 with a remainder of 13.
The next digit of our result is 7. 
Result so far: 11837.9047
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.

Let's proceed to step 11:
The number 21 fits into 130 6 times, leaving a remainder of 4.
Record the quotient 6 as the next digit in the result. 
Result so far: 11837.90476
Deduct 126 from 130 and we're left with 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Going ahead to step 12:
21 goes into 40 1 times with a remainder of 19.
The next digit of our result is 1. 
Result so far: 11837.904761
If we subtract 21 from 40, we get 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 13:
The number 21 fits into 190 9 times, leaving a remainder of 1.
Put 9 as the next digit of the answer. 
Result so far: 11837.9047619
If we take 189 away from 190, we end up 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.

On to step 14:
10 divided by 21 is 0 with a remainder of 10.
Put 0 as the next digit of the answer. 
Result so far: 11837.9047619
If we subtract 0 from 10, we get 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

The final outcome is 11837.9047619, with a leftover of 1e-08.