We look at the division of 766164 by 90 
We're looking to find how many times 90 goes into 766164.

On to step 1:
If we divide 7 by 90, we get 0 and a remainder of 7.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 7 after subtracting 0 from 7.
Include the next digit (6) from the dividend after 7, then repeat: 76 / 90

Moving on to step 2:
90 can be fit into 76 0 times, resulting in a remainder of 76.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 76, we end up with 76.
Grab the next digit (6) from the dividend, add it to 76, then carry on: 766 / 90

Moving on to step 3:
766 divided by 90 is 8 with a remainder of 46.
Put 8 as the next digit of the answer. 
Result so far: 8.0
Subtract 720 from 766 to get 46.
Fetch the next digit (1) from the dividend, attach it to 46 and continue: 461 / 90

On to step 4:
461 divided by 90 is 5 with a remainder of 11.
Put 5 as the next digit of the answer. 
Result so far: 85.0
Deduct 450 from 461 and we're left with 11.
Take the next digit (6) from the dividend and append it to 11, then repeat: 116 / 90

Going ahead to step 5:
90 goes into 116 1 times with a remainder of 26.
Put 1 as the next digit of the answer. 
Result so far: 851.0
Subtracting 90 from 116 leaves us with 26.
Take the next digit (4) from the dividend and append it to 26, then repeat: 264 / 90

Going ahead to step 6:
The number 90 fits into 264 2 times, leaving a remainder of 84.
Record the quotient 2 as the next digit in the result. 
Result so far: 8512.0
If we subtract 180 from 264, we get 84.
Since there are no more digits in the dividend, we add a zero to the remainder making it 840, and continue the process.

On to step 7:
840 divided by 90 is 9 with a remainder of 30.
The next digit of our result is 9. 
Result so far: 8512.9
Subtract 810 from 840 to get 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Moving on to step 8:
If we divide 300 by 90, we get 3 and a remainder of 30.
Record the quotient 3 as the next digit in the result. 
Result so far: 8512.93
Subtract 270 from 300 to get 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

On to step 9:
The number 90 fits into 300 3 times, leaving a remainder of 30.
Put 3 as the next digit of the answer. 
Result so far: 8512.933
If we take 270 away from 300, we end up with 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

The final outcome is 8512.933, with a leftover of 0.003.