We're dividing 20989941 by 159 
We want to figure out the number of times 20989941 can be divided by 159.

Going ahead to step 1:
159 can be fit into 2 0 times, resulting in a remainder of 2.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 2, we end up with 2.
Append the next digit (0) from the dividend to 2 and continue with: 20 / 159

On to step 2:
If we divide 20 by 159, we get 0 and a remainder of 20.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtracting 0 from 20 leaves us with 20.
Grab the next digit (9) from the dividend, add it to 20, then carry on: 209 / 159

Advancing to step 3:
209 divided by 159 is 1 with a remainder of 50.
Write down 1 as next digit of the result. 
Result so far: 1.0
If we take 159 away from 209, we end up with 50.
Append the next digit (8) from the dividend to 50 and continue with: 508 / 159

Advancing to step 4:
When dividing 508 by 159, we get 3 with a remainder of 31.
Put 3 as the next digit of the answer. 
Result so far: 13.0
Subtract 477 from 508 to get 31.
Bring next digit (9) of the dividend behind the 31 and repeat the process: 319 / 159

Moving on to step 5:
159 goes into 319 2 times with a remainder of 1.
Record the quotient 2 as the next digit in the result. 
Result so far: 132.0
Subtract 318 from 319 to get 1.
Append the next digit (9) from the dividend to 1 and continue with: 19 / 159

Let's proceed to step 6:
The number 159 fits into 19 0 times, leaving a remainder of 19.
The number 0 becomes the next digit in our result. 
Result so far: 1320.0
Deduct 0 from 19 and we're left with 19.
Append the next digit (4) from the dividend to 19 and continue with: 194 / 159

Step 7:
If we divide 194 by 159, we get 1 and a remainder of 35.
Use 1 as the next digit of our solution. 
Result so far: 13201.0
If we subtract 159 from 194, we get 35.
Fetch the next digit (1) from the dividend, attach it to 35 and continue: 351 / 159

Going ahead to step 8:
351 divided by 159 is 2 with a remainder of 33.
Write down 2 as next digit of the result. 
Result so far: 132012.0
Subtract 318 from 351 to get 33.
Since there are no more digits in the dividend, we add a zero to the remainder making it 330, and continue the process.

Moving on to step 9:
159 can be fit into 330 2 times, resulting in a remainder of 12.
The number 2 becomes the next digit in our result. 
Result so far: 132012.2
If we subtract 318 from 330, we 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 10:
The number 159 fits into 120 0 times, leaving a remainder of 120.
Use 0 as the next digit of our solution. 
Result so far: 132012.2
The remainder is 120 after subtracting 0 from 120.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1200, and continue the process.

Step 11:
When dividing 1200 by 159, we get 7 with a remainder of 87.
Write down 7 as next digit of the result. 
Result so far: 132012.207
If we take 1113 away from 1200, we end up with 87.
Since there are no more digits in the dividend, we add a zero to the remainder making it 870, and continue the process.

Let's proceed to step 12:
870 divided by 159 is 5 with a remainder of 75.
Use 5 as the next digit of our solution. 
Result so far: 132012.2075
Subtract 795 from 870 to get 75.
Since there are no more digits in the dividend, we add a zero to the remainder making it 750, and continue the process.

On to step 13:
159 can be fit into 750 4 times, resulting in a remainder of 114.
The next digit of our result is 4. 
Result so far: 132012.20754
If we take 636 away from 750, we end up with 114.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1140, and continue the process.

Moving on to step 14:
The number 159 fits into 1140 7 times, leaving a remainder of 27.
The number 7 becomes the next digit in our result. 
Result so far: 132012.207547
Subtract 1113 from 1140 to get 27.
Since there are no more digits in the dividend, we add a zero to the remainder making it 270, and continue the process.

Advancing to step 15:
159 can be fit into 270 1 times, resulting in a remainder of 111.
Put 1 as the next digit of the answer. 
Result so far: 132012.2075471
The remainder is 111 after subtracting 159 from 270.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1110, and continue the process.

Let's proceed to step 16:
159 can be fit into 1110 6 times, resulting in a remainder of 156.
Record the quotient 6 as the next digit in the result. 
Result so far: 132012.20754716
Subtract 954 from 1110 to get 156.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1560, and continue the process.

Our division results in 132012.20754716 with a remaining 1.56e-07.