90691999 ÷ 468 
We want to figure out the number of times 90691999 can be divided by 468.

Advancing to step 1:
If we divide 9 by 468, we get 0 and 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.
Include the next digit (0) from the dividend after 9, then repeat: 90 / 468

Advancing to step 2:
If we divide 90 by 468, we get 0 and a remainder of 90.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 90, we get 90.
Take the next digit (6) from the dividend and append it to 90, then repeat: 906 / 468

Moving on to step 3:
906 divided by 468 is 1 with a remainder of 438.
The next digit of our result is 1. 
Result so far: 1.0
If we subtract 468 from 906, we get 438.
Include the next digit (9) from the dividend after 438, then repeat: 4389 / 468

Advancing to step 4:
468 can be fit into 4389 9 times, resulting in a remainder of 177.
Write down 9 as next digit of the result. 
Result so far: 19.0
Subtracting 4212 from 4389 leaves us with 177.
Include the next digit (1) from the dividend after 177, then repeat: 1771 / 468

Let's proceed to step 5:
468 goes into 1771 3 times with a remainder of 367.
The next digit of our result is 3. 
Result so far: 193.0
The remainder is 367 after subtracting 1404 from 1771.
Bring next digit (9) of the dividend behind the 367 and repeat the process: 3679 / 468

Let's proceed to step 6:
3679 divided by 468 is 7 with a remainder of 403.
Use 7 as the next digit of our solution. 
Result so far: 1937.0
The remainder is 403 after subtracting 3276 from 3679.
Grab the next digit (9) from the dividend, add it to 403, then carry on: 4039 / 468

Going ahead to step 7:
If we divide 4039 by 468, we get 8 and a remainder of 295.
The next digit of our result is 8. 
Result so far: 19378.0
If we take 3744 away from 4039, we end up with 295.
Grab the next digit (9) from the dividend, add it to 295, then carry on: 2959 / 468

Step 8:
2959 divided by 468 is 6 with a remainder of 151.
Use 6 as the next digit of our solution. 
Result so far: 193786.0
Subtracting 2808 from 2959 leaves us with 151.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1510, and continue the process.

Going ahead to step 9:
The number 468 fits into 1510 3 times, leaving a remainder of 106.
Put 3 as the next digit of the answer. 
Result so far: 193786.3
If we subtract 1404 from 1510, we get 106.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1060, and continue the process.

Let's proceed to step 10:
If we divide 1060 by 468, we get 2 and a remainder of 124.
The next digit of our result is 2. 
Result so far: 193786.32
Subtracting 936 from 1060 leaves us with 124.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1240, and continue the process.

Advancing to step 11:
When dividing 1240 by 468, we get 2 with a remainder of 304.
The next digit of our result is 2. 
Result so far: 193786.322
The remainder is 304 after subtracting 936 from 1240.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3040, and continue the process.

The final outcome is 193786.322, with a leftover of 0.0304.