We look at the division of 90171673 by 158 
Our goal is to divide 90171673 by 158.

Going ahead to step 1:
158 goes into 9 0 times with a remainder of 9.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 9 and we're left with 9.
Grab the next digit (0) from the dividend, add it to 9, then carry on: 90 / 158

On to step 2:
158 goes into 90 0 times with a remainder of 90.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 90, we end up with 90.
Grab the next digit (1) from the dividend, add it to 90, then carry on: 901 / 158

On to step 3:
If we divide 901 by 158, we get 5 and a remainder of 111.
The number 5 becomes the next digit in our result. 
Result so far: 5.0
Subtracting 790 from 901 leaves us with 111.
Bring next digit (7) of the dividend behind the 111 and repeat the process: 1117 / 158

Going ahead to step 4:
1117 divided by 158 is 7 with a remainder of 11.
Put 7 as the next digit of the answer. 
Result so far: 57.0
If we take 1106 away from 1117, we end up with 11.
Grab the next digit (1) from the dividend, add it to 11, then carry on: 111 / 158

On to step 5:
158 can be fit into 111 0 times, resulting in a remainder of 111.
Put 0 as the next digit of the answer. 
Result so far: 570.0
Subtracting 0 from 111 leaves us with 111.
Bring next digit (6) of the dividend behind the 111 and repeat the process: 1116 / 158

Step 6:
1116 divided by 158 is 7 with a remainder of 10.
Use 7 as the next digit of our solution. 
Result so far: 5707.0
The remainder is 10 after subtracting 1106 from 1116.
Include the next digit (7) from the dividend after 10, then repeat: 107 / 158

Advancing to step 7:
158 goes into 107 0 times with a remainder of 107.
Use 0 as the next digit of our solution. 
Result so far: 57070.0
The remainder is 107 after subtracting 0 from 107.
Append the next digit (3) from the dividend to 107 and continue with: 1073 / 158

On to step 8:
1073 divided by 158 is 6 with a remainder of 125.
The number 6 becomes the next digit in our result. 
Result so far: 570706.0
If we take 948 away from 1073, we end up with 125.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1250, and continue the process.

Advancing to step 9:
158 can be fit into 1250 7 times, resulting in a remainder of 144.
The number 7 becomes the next digit in our result. 
Result so far: 570706.7
The remainder is 144 after subtracting 1106 from 1250.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1440, and continue the process.

Going ahead to step 10:
If we divide 1440 by 158, we get 9 and a remainder of 18.
Use 9 as the next digit of our solution. 
Result so far: 570706.79
Subtracting 1422 from 1440 leaves us with 18.
Since there are no more digits in the dividend, we add a zero to the remainder making it 180, and continue the process.

On to step 11:
158 can be fit into 180 1 times, resulting in a remainder of 22.
The number 1 becomes the next digit in our result. 
Result so far: 570706.791
Subtract 158 from 180 to get 22.
Since there are no more digits in the dividend, we add a zero to the remainder making it 220, and continue the process.

Let's proceed to step 12:
When dividing 220 by 158, we get 1 with a remainder of 62.
Use 1 as the next digit of our solution. 
Result so far: 570706.7911
The remainder is 62 after subtracting 158 from 220.
Since there are no more digits in the dividend, we add a zero to the remainder making it 620, and continue the process.

The quotient of the division is 570706.7911, and the remainder is 0.00062.