18978298 ÷ 13 
We want to figure out the number of times 18978298 can be divided by 13.

Step 1:
13 can be fit into 1 0 times, resulting in a remainder of 1.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 1 to get 1.
Append the next digit (8) from the dividend to 1 and continue with: 18 / 13

Advancing to step 2:
13 can be fit into 18 1 times, resulting in a remainder of 5.
Write down 1 as next digit of the result. 
Result so far: 1.0
Subtract 13 from 18 to get 5.
Append the next digit (9) from the dividend to 5 and continue with: 59 / 13

Advancing to step 3:
13 can be fit into 59 4 times, resulting in a remainder of 7.
Write down 4 as next digit of the result. 
Result so far: 14.0
Subtract 52 from 59 to get 7.
Include the next digit (7) from the dividend after 7, then repeat: 77 / 13

Let's proceed to step 4:
When dividing 77 by 13, we get 5 with a remainder of 12.
Use 5 as the next digit of our solution. 
Result so far: 145.0
Subtract 65 from 77 to get 12.
Fetch the next digit (8) from the dividend, attach it to 12 and continue: 128 / 13

Advancing to step 5:
The number 13 fits into 128 9 times, leaving a remainder of 11.
The number 9 becomes the next digit in our result. 
Result so far: 1459.0
Subtracting 117 from 128 leaves us with 11.
Take the next digit (2) from the dividend and append it to 11, then repeat: 112 / 13

Going ahead to step 6:
The number 13 fits into 112 8 times, leaving a remainder of 8.
Use 8 as the next digit of our solution. 
Result so far: 14598.0
If we subtract 104 from 112, we get 8.
Append the next digit (9) from the dividend to 8 and continue with: 89 / 13

Let's proceed to step 7:
If we divide 89 by 13, we get 6 and a remainder of 11.
The number 6 becomes the next digit in our result. 
Result so far: 145986.0
Subtract 78 from 89 to get 11.
Take the next digit (8) from the dividend and append it to 11, then repeat: 118 / 13

Advancing to step 8:
If we divide 118 by 13, we get 9 and a remainder of 1.
Use 9 as the next digit of our solution. 
Result so far: 1459869.0
Subtracting 117 from 118 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.

Going ahead to step 9:
If we divide 10 by 13, we get 0 and a remainder of 10.
Use 0 as the next digit of our solution. 
Result so far: 1459869.0
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.

Let's proceed to step 10:
The number 13 fits into 100 7 times, leaving a remainder of 9.
Record the quotient 7 as the next digit in the result. 
Result so far: 1459869.07
If we subtract 91 from 100, we get 9.
Since there are no more digits in the dividend, we add a zero to the remainder making it 90, and continue the process.

Let's proceed to step 11:
90 divided by 13 is 6 with a remainder of 12.
Record the quotient 6 as the next digit in the result. 
Result so far: 1459869.076
Deduct 78 from 90 and we're left with 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

Let's proceed to step 12:
13 goes into 120 9 times with a remainder of 3.
Record the quotient 9 as the next digit in the result. 
Result so far: 1459869.0769
Deduct 117 from 120 and we're left with 3.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

Let's proceed to step 13:
If we divide 30 by 13, we get 2 and a remainder of 4.
The number 2 becomes the next digit in our result. 
Result so far: 1459869.07692
Subtracting 26 from 30 leaves us 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.

Advancing to step 14:
If we divide 40 by 13, we get 3 and a remainder of 1.
Write down 3 as next digit of the result. 
Result so far: 1459869.076923
Deduct 39 from 40 and we're left 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.

Going ahead to step 15:
When dividing 10 by 13, we get 0 with a remainder of 10.
Use 0 as the next digit of our solution. 
Result so far: 1459869.076923
If we take 0 away from 10, we end up 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 16:
100 divided by 13 is 7 with a remainder of 9.
The number 7 becomes the next digit in our result. 
Result so far: 1459869.07692307
If we subtract 91 from 100, we get 9.
Since there are no more digits in the dividend, we add a zero to the remainder making it 90, and continue the process.

The final result is 1459869.07692307 with a remainder of 9e-09.