251379 ÷ 13 
We want to figure out the number of times 251379 can be divided by 13.

Going ahead to step 1:
2 divided by 13 is 0 with a remainder of 2.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtracting 0 from 2 leaves us with 2.
Append the next digit (5) from the dividend to 2 and continue with: 25 / 13

Moving on to step 2:
25 divided by 13 is 1 with a remainder of 12.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
If we subtract 13 from 25, we get 12.
Include the next digit (1) from the dividend after 12, then repeat: 121 / 13

On to step 3:
When dividing 121 by 13, we get 9 with a remainder of 4.
The number 9 becomes the next digit in our result. 
Result so far: 19.0
Subtracting 117 from 121 leaves us with 4.
Include the next digit (3) from the dividend after 4, then repeat: 43 / 13

Advancing to step 4:
If we divide 43 by 13, we get 3 and a remainder of 4.
Write down 3 as next digit of the result. 
Result so far: 193.0
If we subtract 39 from 43, we get 4.
Append the next digit (7) from the dividend to 4 and continue with: 47 / 13

Let's proceed to step 5:
If we divide 47 by 13, we get 3 and a remainder of 8.
The next digit of our result is 3. 
Result so far: 1933.0
Deduct 39 from 47 and we're left with 8.
Grab the next digit (9) from the dividend, add it to 8, then carry on: 89 / 13

Going ahead to step 6:
13 goes into 89 6 times with a remainder of 11.
Record the quotient 6 as the next digit in the result. 
Result so far: 19336.0
Deduct 78 from 89 and we're left with 11.
Since there are no more digits in the dividend, we add a zero to the remainder making it 110, and continue the process.

Advancing to step 7:
13 goes into 110 8 times with a remainder of 6.
Record the quotient 8 as the next digit in the result. 
Result so far: 19336.8
The remainder is 6 after subtracting 104 from 110.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Moving on to step 8:
60 divided by 13 is 4 with a remainder of 8.
Record the quotient 4 as the next digit in the result. 
Result so far: 19336.84
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.

Let's proceed to step 9:
13 can be fit into 80 6 times, resulting in a remainder of 2.
The next digit of our result is 6. 
Result so far: 19336.846
Subtract 78 from 80 to get 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Moving on to step 10:
When dividing 20 by 13, we get 1 with a remainder of 7.
Record the quotient 1 as the next digit in the result. 
Result so far: 19336.8461
The remainder is 7 after subtracting 13 from 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 70, and continue the process.

Moving on to step 11:
The number 13 fits into 70 5 times, leaving a remainder of 5.
Put 5 as the next digit of the answer. 
Result so far: 19336.84615
Subtracting 65 from 70 leaves us 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.

Moving on to step 12:
If we divide 50 by 13, we get 3 and a remainder of 11.
Record the quotient 3 as the next digit in the result. 
Result so far: 19336.846153
Deduct 39 from 50 and we're left with 11.
Since there are no more digits in the dividend, we add a zero to the remainder making it 110, and continue the process.

On to step 13:
When dividing 110 by 13, we get 8 with a remainder of 6.
The number 8 becomes the next digit in our result. 
Result so far: 19336.8461538
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.

On to step 14:
If we divide 60 by 13, we get 4 and a remainder of 8.
The number 4 becomes the next digit in our result. 
Result so far: 19336.84615384
If we subtract 52 from 60, 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.

After the division, we end up with 19336.84615384 and a remainder of 8e-09.