153981 divided by 13 
We want to figure out the number of times 153981 can be divided by 13.

Step 1:
When dividing 1 by 13, we get 0 with a remainder of 1.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 1 and we're left with 1.
Bring next digit (5) of the dividend behind the 1 and repeat the process: 15 / 13

Going ahead to step 2:
13 goes into 15 1 times with a remainder of 2.
The next digit of our result is 1. 
Result so far: 1.0
Subtracting 13 from 15 leaves us with 2.
Append the next digit (3) from the dividend to 2 and continue with: 23 / 13

Going ahead to step 3:
The number 13 fits into 23 1 times, leaving a remainder of 10.
The number 1 becomes the next digit in our result. 
Result so far: 11.0
Subtract 13 from 23 to get 10.
Append the next digit (9) from the dividend to 10 and continue with: 109 / 13

Going ahead to step 4:
If we divide 109 by 13, we get 8 and a remainder of 5.
Put 8 as the next digit of the answer. 
Result so far: 118.0
Subtract 104 from 109 to get 5.
Append the next digit (8) from the dividend to 5 and continue with: 58 / 13

Advancing to step 5:
58 divided by 13 is 4 with a remainder of 6.
Use 4 as the next digit of our solution. 
Result so far: 1184.0
If we subtract 52 from 58, we get 6.
Fetch the next digit (1) from the dividend, attach it to 6 and continue: 61 / 13

On to step 6:
13 goes into 61 4 times with a remainder of 9.
Use 4 as the next digit of our solution. 
Result so far: 11844.0
The remainder is 9 after subtracting 52 from 61.
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 7:
13 can be fit into 90 6 times, resulting in a remainder of 12.
Record the quotient 6 as the next digit in the result. 
Result so far: 11844.6
Subtract 78 from 90 to get 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

Going ahead to step 8:
13 goes into 120 9 times with a remainder of 3.
Put 9 as the next digit of the answer. 
Result so far: 11844.69
Subtract 117 from 120 to get 3.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

Step 9:
If we divide 30 by 13, we get 2 and a remainder of 4.
Write down 2 as next digit of the result. 
Result so far: 11844.692
Subtract 26 from 30 to get 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 10:
The number 13 fits into 40 3 times, leaving a remainder of 1.
Use 3 as the next digit of our solution. 
Result so far: 11844.6923
Subtract 39 from 40 to 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.

Going ahead to step 11:
13 goes into 10 0 times with a remainder of 10.
The next digit of our result is 0. 
Result so far: 11844.6923
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.

Let's proceed to step 12:
100 divided by 13 is 7 with a remainder of 9.
Use 7 as the next digit of our solution. 
Result so far: 11844.692307
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.

On to step 13:
90 divided by 13 is 6 with a remainder of 12.
Write down 6 as next digit of the result. 
Result so far: 11844.6923076
Subtract 78 from 90 to get 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 14:
13 goes into 120 9 times with a remainder of 3.
The number 9 becomes the next digit in our result. 
Result so far: 11844.69230769
Subtract 117 from 120 to get 3.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

The quotient of the division is 11844.69230769, and the remainder is 3e-09.