299197 divided by 21 
We're looking to find how many times 21 goes into 299197.

On to step 1:
The number 21 fits into 2 0 times, leaving a remainder of 2.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 2 to get 2.
Fetch the next digit (9) from the dividend, attach it to 2 and continue: 29 / 21

Let's proceed to step 2:
When dividing 29 by 21, we get 1 with a remainder of 8.
Use 1 as the next digit of our solution. 
Result so far: 1.0
The remainder is 8 after subtracting 21 from 29.
Fetch the next digit (9) from the dividend, attach it to 8 and continue: 89 / 21

Moving on to step 3:
If we divide 89 by 21, we get 4 and a remainder of 5.
The next digit of our result is 4. 
Result so far: 14.0
The remainder is 5 after subtracting 84 from 89.
Bring next digit (1) of the dividend behind the 5 and repeat the process: 51 / 21

On to step 4:
21 can be fit into 51 2 times, resulting in a remainder of 9.
The next digit of our result is 2. 
Result so far: 142.0
If we take 42 away from 51, we end up with 9.
Bring next digit (9) of the dividend behind the 9 and repeat the process: 99 / 21

Let's proceed to step 5:
99 divided by 21 is 4 with a remainder of 15.
Use 4 as the next digit of our solution. 
Result so far: 1424.0
Subtracting 84 from 99 leaves us with 15.
Fetch the next digit (7) from the dividend, attach it to 15 and continue: 157 / 21

Step 6:
157 divided by 21 is 7 with a remainder of 10.
Record the quotient 7 as the next digit in the result. 
Result so far: 14247.0
If we subtract 147 from 157, 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.

Moving on to step 7:
21 can be fit into 100 4 times, resulting in a remainder of 16.
Put 4 as the next digit of the answer. 
Result so far: 14247.4
If we subtract 84 from 100, we get 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Going ahead to step 8:
The number 21 fits into 160 7 times, leaving a remainder of 13.
Write down 7 as next digit of the result. 
Result so far: 14247.47
If we subtract 147 from 160, we 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.

Going ahead to step 9:
21 can be fit into 130 6 times, resulting in a remainder of 4.
Record the quotient 6 as the next digit in the result. 
Result so far: 14247.476
If we take 126 away from 130, we end up 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.

Step 10:
When dividing 40 by 21, we get 1 with a remainder of 19.
The next digit of our result is 1. 
Result so far: 14247.4761
Deduct 21 from 40 and we're left 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 11:
190 divided by 21 is 9 with a remainder of 1.
Put 9 as the next digit of the answer. 
Result so far: 14247.47619
If we subtract 189 from 190, we get 1.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

Step 12:
If we divide 10 by 21, we get 0 and a remainder of 10.
The next digit of our result is 0. 
Result so far: 14247.47619
Subtracting 0 from 10 leaves us 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.

Going ahead to step 13:
21 goes into 100 4 times with a remainder of 16.
Write down 4 as next digit of the result. 
Result so far: 14247.4761904
Subtract 84 from 100 to get 16.
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 14:
21 goes into 160 7 times with a remainder of 13.
Record the quotient 7 as the next digit in the result. 
Result so far: 14247.47619047
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.

The final outcome is 14247.47619047, with a leftover of 1.3e-08.