91790558 divided by 816 
We want to figure out the number of times 91790558 can be divided by 816.

Advancing to step 1:
The number 816 fits into 9 0 times, leaving a remainder of 9.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 9 and we're left with 9.
Append the next digit (1) from the dividend to 9 and continue with: 91 / 816

Advancing to step 2:
816 can be fit into 91 0 times, resulting in a remainder of 91.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 91 to get 91.
Append the next digit (7) from the dividend to 91 and continue with: 917 / 816

Step 3:
When dividing 917 by 816, we get 1 with a remainder of 101.
Put 1 as the next digit of the answer. 
Result so far: 1.0
Subtract 816 from 917 to get 101.
Fetch the next digit (9) from the dividend, attach it to 101 and continue: 1019 / 816

Moving on to step 4:
If we divide 1019 by 816, we get 1 and a remainder of 203.
Record the quotient 1 as the next digit in the result. 
Result so far: 11.0
Deduct 816 from 1019 and we're left with 203.
Append the next digit (0) from the dividend to 203 and continue with: 2030 / 816

Let's proceed to step 5:
816 goes into 2030 2 times with a remainder of 398.
Record the quotient 2 as the next digit in the result. 
Result so far: 112.0
Subtract 1632 from 2030 to get 398.
Include the next digit (5) from the dividend after 398, then repeat: 3985 / 816

Going ahead to step 6:
816 goes into 3985 4 times with a remainder of 721.
Write down 4 as next digit of the result. 
Result so far: 1124.0
If we subtract 3264 from 3985, we get 721.
Bring next digit (5) of the dividend behind the 721 and repeat the process: 7215 / 816

Moving on to step 7:
816 can be fit into 7215 8 times, resulting in a remainder of 687.
Put 8 as the next digit of the answer. 
Result so far: 11248.0
The remainder is 687 after subtracting 6528 from 7215.
Fetch the next digit (8) from the dividend, attach it to 687 and continue: 6878 / 816

Advancing to step 8:
The number 816 fits into 6878 8 times, leaving a remainder of 350.
The number 8 becomes the next digit in our result. 
Result so far: 112488.0
If we take 6528 away from 6878, we end up with 350.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3500, and continue the process.

Step 9:
816 goes into 3500 4 times with a remainder of 236.
The next digit of our result is 4. 
Result so far: 112488.4
Subtract 3264 from 3500 to get 236.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2360, and continue the process.

Step 10:
816 goes into 2360 2 times with a remainder of 728.
Put 2 as the next digit of the answer. 
Result so far: 112488.42
Subtracting 1632 from 2360 leaves us with 728.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7280, and continue the process.

Step 11:
The number 816 fits into 7280 8 times, leaving a remainder of 752.
Record the quotient 8 as the next digit in the result. 
Result so far: 112488.428
If we subtract 6528 from 7280, we get 752.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7520, and continue the process.

Going ahead to step 12:
The number 816 fits into 7520 9 times, leaving a remainder of 176.
Record the quotient 9 as the next digit in the result. 
Result so far: 112488.4289
Deduct 7344 from 7520 and we're left with 176.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1760, and continue the process.

Let's proceed to step 13:
816 can be fit into 1760 2 times, resulting in a remainder of 128.
Write down 2 as next digit of the result. 
Result so far: 112488.42892
Deduct 1632 from 1760 and we're left with 128.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1280, and continue the process.

On to step 14:
If we divide 1280 by 816, we get 1 and a remainder of 464.
Use 1 as the next digit of our solution. 
Result so far: 112488.428921
Deduct 816 from 1280 and we're left with 464.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4640, and continue the process.

Step 15:
4640 divided by 816 is 5 with a remainder of 560.
Put 5 as the next digit of the answer. 
Result so far: 112488.4289215
Subtracting 4080 from 4640 leaves us with 560.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5600, and continue the process.

Let's proceed to step 16:
5600 divided by 816 is 6 with a remainder of 704.
Put 6 as the next digit of the answer. 
Result so far: 112488.42892156
If we subtract 4896 from 5600, we get 704.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7040, and continue the process.

After the division, we end up with 112488.42892156 and a remainder of 7.04e-07.