We look at the division of 80331451 by 159 
We're looking to find how many times 159 goes into 80331451.

Let's proceed to step 1:
If we divide 8 by 159, we get 0 and a remainder of 8.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 8 after subtracting 0 from 8.
Take the next digit (0) from the dividend and append it to 8, then repeat: 80 / 159

Moving on to step 2:
The number 159 fits into 80 0 times, leaving a remainder of 80.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 80, we get 80.
Grab the next digit (3) from the dividend, add it to 80, then carry on: 803 / 159

On to step 3:
159 goes into 803 5 times with a remainder of 8.
Write down 5 as next digit of the result. 
Result so far: 5.0
If we subtract 795 from 803, we get 8.
Include the next digit (3) from the dividend after 8, then repeat: 83 / 159

Advancing to step 4:
159 can be fit into 83 0 times, resulting in a remainder of 83.
Put 0 as the next digit of the answer. 
Result so far: 50.0
Subtract 0 from 83 to get 83.
Bring next digit (1) of the dividend behind the 83 and repeat the process: 831 / 159

Step 5:
If we divide 831 by 159, we get 5 and a remainder of 36.
Use 5 as the next digit of our solution. 
Result so far: 505.0
Subtracting 795 from 831 leaves us with 36.
Fetch the next digit (4) from the dividend, attach it to 36 and continue: 364 / 159

Going ahead to step 6:
159 goes into 364 2 times with a remainder of 46.
The next digit of our result is 2. 
Result so far: 5052.0
If we subtract 318 from 364, we get 46.
Fetch the next digit (5) from the dividend, attach it to 46 and continue: 465 / 159

Advancing to step 7:
159 can be fit into 465 2 times, resulting in a remainder of 147.
Put 2 as the next digit of the answer. 
Result so far: 50522.0
Subtracting 318 from 465 leaves us with 147.
Include the next digit (1) from the dividend after 147, then repeat: 1471 / 159

On to step 8:
When dividing 1471 by 159, we get 9 with a remainder of 40.
The next digit of our result is 9. 
Result so far: 505229.0
If we take 1431 away from 1471, we end up with 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Advancing to step 9:
159 goes into 400 2 times with a remainder of 82.
Use 2 as the next digit of our solution. 
Result so far: 505229.2
If we take 318 away from 400, we end up with 82.
Since there are no more digits in the dividend, we add a zero to the remainder making it 820, and continue the process.

Let's proceed to step 10:
159 goes into 820 5 times with a remainder of 25.
Put 5 as the next digit of the answer. 
Result so far: 505229.25
Subtracting 795 from 820 leaves us with 25.
Since there are no more digits in the dividend, we add a zero to the remainder making it 250, and continue the process.

Let's proceed to step 11:
When dividing 250 by 159, we get 1 with a remainder of 91.
Use 1 as the next digit of our solution. 
Result so far: 505229.251
Deduct 159 from 250 and we're left with 91.
Since there are no more digits in the dividend, we add a zero to the remainder making it 910, and continue the process.

Moving on to step 12:
159 goes into 910 5 times with a remainder of 115.
Put 5 as the next digit of the answer. 
Result so far: 505229.2515
If we take 795 away from 910, we end up with 115.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1150, and continue the process.

Let's proceed to step 13:
159 goes into 1150 7 times with a remainder of 37.
Use 7 as the next digit of our solution. 
Result so far: 505229.25157
Subtracting 1113 from 1150 leaves us with 37.
Since there are no more digits in the dividend, we add a zero to the remainder making it 370, and continue the process.

Step 14:
159 goes into 370 2 times with a remainder of 52.
Put 2 as the next digit of the answer. 
Result so far: 505229.251572
The remainder is 52 after subtracting 318 from 370.
Since there are no more digits in the dividend, we add a zero to the remainder making it 520, and continue the process.

Let's proceed to step 15:
The number 159 fits into 520 3 times, leaving a remainder of 43.
Put 3 as the next digit of the answer. 
Result so far: 505229.2515723
Subtracting 477 from 520 leaves us with 43.
Since there are no more digits in the dividend, we add a zero to the remainder making it 430, and continue the process.

Advancing to step 16:
If we divide 430 by 159, we get 2 and a remainder of 112.
The next digit of our result is 2. 
Result so far: 505229.25157232
Subtracting 318 from 430 leaves us with 112.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1120, and continue the process.

After the division, we end up with 505229.25157232 and a remainder of 1.12e-07.