We divide 80661559 by 158
We're looking to find how many times 158 goes into 80661559.

Moving on to step 1:
When dividing 8 by 158, we get 0 with a remainder of 8.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 8 after subtracting 0 from 8.
Bring next digit (0) of the dividend behind the 8 and repeat the process: 80 / 158

Going ahead to step 2:
158 can be fit into 80 0 times, resulting in a remainder of 80.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtracting 0 from 80 leaves us with 80.
Include the next digit (6) from the dividend after 80, then repeat: 806 / 158

Let's proceed to step 3:
158 can be fit into 806 5 times, resulting in a remainder of 16.
The number 5 becomes the next digit in our result. 
Result so far: 5.0
Subtracting 790 from 806 leaves us with 16.
Include the next digit (6) from the dividend after 16, then repeat: 166 / 158

Moving on to step 4:
When dividing 166 by 158, we get 1 with a remainder of 8.
The number 1 becomes the next digit in our result. 
Result so far: 51.0
Subtracting 158 from 166 leaves us with 8.
Take the next digit (1) from the dividend and append it to 8, then repeat: 81 / 158

Going ahead to step 5:
If we divide 81 by 158, we get 0 and a remainder of 81.
Write down 0 as next digit of the result. 
Result so far: 510.0
The remainder is 81 after subtracting 0 from 81.
Take the next digit (5) from the dividend and append it to 81, then repeat: 815 / 158

Moving on to step 6:
158 can be fit into 815 5 times, resulting in a remainder of 25.
The next digit of our result is 5. 
Result so far: 5105.0
Subtracting 790 from 815 leaves us with 25.
Grab the next digit (5) from the dividend, add it to 25, then carry on: 255 / 158

Going ahead to step 7:
158 can be fit into 255 1 times, resulting in a remainder of 97.
Write down 1 as next digit of the result. 
Result so far: 51051.0
If we subtract 158 from 255, we get 97.
Include the next digit (9) from the dividend after 97, then repeat: 979 / 158

Let's proceed to step 8:
When dividing 979 by 158, we get 6 with a remainder of 31.
The next digit of our result is 6. 
Result so far: 510516.0
The remainder is 31 after subtracting 948 from 979.
Since there are no more digits in the dividend, we add a zero to the remainder making it 310, and continue the process.

Going ahead to step 9:
When dividing 310 by 158, we get 1 with a remainder of 152.
Write down 1 as next digit of the result. 
Result so far: 510516.1
Subtracting 158 from 310 leaves us with 152.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1520, and continue the process.

Advancing to step 10:
1520 divided by 158 is 9 with a remainder of 98.
The next digit of our result is 9. 
Result so far: 510516.19
If we subtract 1422 from 1520, we get 98.
Since there are no more digits in the dividend, we add a zero to the remainder making it 980, and continue the process.

On to step 11:
If we divide 980 by 158, we get 6 and a remainder of 32.
Use 6 as the next digit of our solution. 
Result so far: 510516.196
Subtract 948 from 980 to get 32.
Since there are no more digits in the dividend, we add a zero to the remainder making it 320, and continue the process.

Step 12:
When dividing 320 by 158, we get 2 with a remainder of 4.
The next digit of our result is 2. 
Result so far: 510516.1962
Subtracting 316 from 320 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.

Let's proceed to step 13:
The number 158 fits into 40 0 times, leaving a remainder of 40.
Write down 0 as next digit of the result. 
Result so far: 510516.1962
Subtract 0 from 40 to get 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Going ahead to step 14:
The number 158 fits into 400 2 times, leaving a remainder of 84.
The next digit of our result is 2. 
Result so far: 510516.196202
Deduct 316 from 400 and we're left with 84.
Since there are no more digits in the dividend, we add a zero to the remainder making it 840, and continue the process.

Going ahead to step 15:
If we divide 840 by 158, we get 5 and a remainder of 50.
Record the quotient 5 as the next digit in the result. 
Result so far: 510516.1962025
Deduct 790 from 840 and we're left with 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

Step 16:
158 goes into 500 3 times with a remainder of 26.
Record the quotient 3 as the next digit in the result. 
Result so far: 510516.19620253
Subtracting 474 from 500 leaves us with 26.
Since there are no more digits in the dividend, we add a zero to the remainder making it 260, and continue the process.

The final result is 510516.19620253 with a remainder of 2.6e-08.