300942 divided by 13 
We're looking to find how many times 13 goes into 300942.

Step 1:
3 divided by 13 is 0 with a remainder of 3.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 3, we end up with 3.
Bring next digit (0) of the dividend behind the 3 and repeat the process: 30 / 13

On to step 2:
The number 13 fits into 30 2 times, leaving a remainder of 4.
Use 2 as the next digit of our solution. 
Result so far: 2.0
The remainder is 4 after subtracting 26 from 30.
Grab the next digit (0) from the dividend, add it to 4, then carry on: 40 / 13

Moving on to step 3:
13 goes into 40 3 times with a remainder of 1.
The next digit of our result is 3. 
Result so far: 23.0
If we take 39 away from 40, we end up with 1.
Bring next digit (9) of the dividend behind the 1 and repeat the process: 19 / 13

Moving on to step 4:
13 can be fit into 19 1 times, resulting in a remainder of 6.
The next digit of our result is 1. 
Result so far: 231.0
The remainder is 6 after subtracting 13 from 19.
Take the next digit (4) from the dividend and append it to 6, then repeat: 64 / 13

Let's proceed to step 5:
When dividing 64 by 13, we get 4 with a remainder of 12.
Record the quotient 4 as the next digit in the result. 
Result so far: 2314.0
The remainder is 12 after subtracting 52 from 64.
Include the next digit (2) from the dividend after 12, then repeat: 122 / 13

Going ahead to step 6:
If we divide 122 by 13, we get 9 and a remainder of 5.
The next digit of our result is 9. 
Result so far: 23149.0
The remainder is 5 after subtracting 117 from 122.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

Step 7:
If we divide 50 by 13, we get 3 and a remainder of 11.
Use 3 as the next digit of our solution. 
Result so far: 23149.3
If we subtract 39 from 50, we 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.

Let's proceed to step 8:
When dividing 110 by 13, we get 8 with a remainder of 6.
The next digit of our result is 8. 
Result so far: 23149.38
If we subtract 104 from 110, we get 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Advancing to step 9:
When dividing 60 by 13, we get 4 with a remainder of 8.
The number 4 becomes the next digit in our result. 
Result so far: 23149.384
Deduct 52 from 60 and we're left with 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

On to step 10:
13 goes into 80 6 times with a remainder of 2.
Put 6 as the next digit of the answer. 
Result so far: 23149.3846
If we take 78 away from 80, we end up with 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Advancing to step 11:
20 divided by 13 is 1 with a remainder of 7.
Put 1 as the next digit of the answer. 
Result so far: 23149.38461
If we take 13 away from 20, we end up with 7.
Since there are no more digits in the dividend, we add a zero to the remainder making it 70, and continue the process.

On to step 12:
70 divided by 13 is 5 with a remainder of 5.
Record the quotient 5 as the next digit in the result. 
Result so far: 23149.384615
If we subtract 65 from 70, we get 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:
13 goes into 50 3 times with a remainder of 11.
Use 3 as the next digit of our solution. 
Result so far: 23149.3846153
If we subtract 39 from 50, we 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.

Let's proceed to step 14:
If we divide 110 by 13, we get 8 and a remainder of 6.
Record the quotient 8 as the next digit in the result. 
Result so far: 23149.38461538
Deduct 104 from 110 and we're left with 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

The final outcome is 23149.38461538, with a leftover of 6e-09.