778073 divided by 90 
We want to figure out the number of times 778073 can be divided by 90.

Going ahead to step 1:
90 can be fit into 7 0 times, resulting in a remainder of 7.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 7, we end up with 7.
Take the next digit (7) from the dividend and append it to 7, then repeat: 77 / 90

Let's proceed to step 2:
90 goes into 77 0 times with a remainder of 77.
The next digit of our result is 0. 
Result so far: 0.0
Subtract 0 from 77 to get 77.
Bring next digit (8) of the dividend behind the 77 and repeat the process: 778 / 90

Step 3:
778 divided by 90 is 8 with a remainder of 58.
The number 8 becomes the next digit in our result. 
Result so far: 8.0
If we subtract 720 from 778, we get 58.
Grab the next digit (0) from the dividend, add it to 58, then carry on: 580 / 90

Going ahead to step 4:
If we divide 580 by 90, we get 6 and a remainder of 40.
Record the quotient 6 as the next digit in the result. 
Result so far: 86.0
Subtract 540 from 580 to get 40.
Bring next digit (7) of the dividend behind the 40 and repeat the process: 407 / 90

Advancing to step 5:
When dividing 407 by 90, we get 4 with a remainder of 47.
Write down 4 as next digit of the result. 
Result so far: 864.0
If we take 360 away from 407, we end up with 47.
Append the next digit (3) from the dividend to 47 and continue with: 473 / 90

Step 6:
When dividing 473 by 90, we get 5 with a remainder of 23.
Put 5 as the next digit of the answer. 
Result so far: 8645.0
If we take 450 away from 473, we end up with 23.
Since there are no more digits in the dividend, we add a zero to the remainder making it 230, and continue the process.

Let's proceed to step 7:
The number 90 fits into 230 2 times, leaving a remainder of 50.
Record the quotient 2 as the next digit in the result. 
Result so far: 8645.2
The remainder is 50 after subtracting 180 from 230.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

Advancing to step 8:
When dividing 500 by 90, we get 5 with a remainder of 50.
Put 5 as the next digit of the answer. 
Result so far: 8645.25
The remainder is 50 after subtracting 450 from 500.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

Let's proceed to step 9:
500 divided by 90 is 5 with a remainder of 50.
The number 5 becomes the next digit in our result. 
Result so far: 8645.255
If we subtract 450 from 500, we get 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

Our division results in 8645.255 with a remaining 0.005.