We're dividing 90190973 by 158 
We want to figure out the number of times 90190973 can be divided by 158.

Moving on to step 1:
The number 158 fits into 9 0 times, leaving a remainder of 9.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 9 leaves us with 9.
Take the next digit (0) from the dividend and append it to 9, then repeat: 90 / 158

Going ahead to step 2:
90 divided by 158 is 0 with a remainder of 90.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
The remainder is 90 after subtracting 0 from 90.
Append the next digit (1) from the dividend to 90 and continue with: 901 / 158

Let's proceed to step 3:
901 divided by 158 is 5 with a remainder of 111.
Use 5 as the next digit of our solution. 
Result so far: 5.0
If we take 790 away from 901, we end up with 111.
Take the next digit (9) from the dividend and append it to 111, then repeat: 1119 / 158

Advancing to step 4:
When dividing 1119 by 158, we get 7 with a remainder of 13.
The number 7 becomes the next digit in our result. 
Result so far: 57.0
Subtract 1106 from 1119 to get 13.
Take the next digit (0) from the dividend and append it to 13, then repeat: 130 / 158

Step 5:
The number 158 fits into 130 0 times, leaving a remainder of 130.
Put 0 as the next digit of the answer. 
Result so far: 570.0
If we take 0 away from 130, we end up with 130.
Append the next digit (9) from the dividend to 130 and continue with: 1309 / 158

Let's proceed to step 6:
When dividing 1309 by 158, we get 8 with a remainder of 45.
Put 8 as the next digit of the answer. 
Result so far: 5708.0
Subtract 1264 from 1309 to get 45.
Bring next digit (7) of the dividend behind the 45 and repeat the process: 457 / 158

Let's proceed to step 7:
158 can be fit into 457 2 times, resulting in a remainder of 141.
Write down 2 as next digit of the result. 
Result so far: 57082.0
Deduct 316 from 457 and we're left with 141.
Append the next digit (3) from the dividend to 141 and continue with: 1413 / 158

Moving on to step 8:
158 goes into 1413 8 times with a remainder of 149.
Write down 8 as next digit of the result. 
Result so far: 570828.0
Subtracting 1264 from 1413 leaves us with 149.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1490, and continue the process.

Let's proceed to step 9:
158 can be fit into 1490 9 times, resulting in a remainder of 68.
Put 9 as the next digit of the answer. 
Result so far: 570828.9
If we subtract 1422 from 1490, we get 68.
Since there are no more digits in the dividend, we add a zero to the remainder making it 680, and continue the process.

Going ahead to step 10:
When dividing 680 by 158, we get 4 with a remainder of 48.
Use 4 as the next digit of our solution. 
Result so far: 570828.94
If we take 632 away from 680, we end up with 48.
Since there are no more digits in the dividend, we add a zero to the remainder making it 480, and continue the process.

Moving on to step 11:
158 goes into 480 3 times with a remainder of 6.
Use 3 as the next digit of our solution. 
Result so far: 570828.943
Deduct 474 from 480 and we're left with 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Advancing to step 12:
158 can be fit into 60 0 times, resulting in a remainder of 60.
The number 0 becomes the next digit in our result. 
Result so far: 570828.943
If we subtract 0 from 60, we get 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

Going ahead to step 13:
600 divided by 158 is 3 with a remainder of 126.
Use 3 as the next digit of our solution. 
Result so far: 570828.94303
If we take 474 away from 600, we end up with 126.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1260, and continue the process.

On to step 14:
The number 158 fits into 1260 7 times, leaving a remainder of 154.
Use 7 as the next digit of our solution. 
Result so far: 570828.943037
The remainder is 154 after subtracting 1106 from 1260.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1540, and continue the process.

Advancing to step 15:
If we divide 1540 by 158, we get 9 and a remainder of 118.
The next digit of our result is 9. 
Result so far: 570828.9430379
Deduct 1422 from 1540 and we're left with 118.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1180, and continue the process.

On to step 16:
158 goes into 1180 7 times with a remainder of 74.
Record the quotient 7 as the next digit in the result. 
Result so far: 570828.94303797
Subtracting 1106 from 1180 leaves us with 74.
Since there are no more digits in the dividend, we add a zero to the remainder making it 740, and continue the process.

The final result is 570828.94303797 with a remainder of 7.4e-08.