We're dividing 77024379 by 90 
We want to figure out the number of times 77024379 can be divided by 90.

Going ahead to step 1:
When dividing 7 by 90, we get 0 with a remainder of 7.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 7, we get 7.
Append the next digit (7) from the dividend to 7 and continue with: 77 / 90

On to step 2:
77 divided by 90 is 0 with a remainder of 77.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 77, we get 77.
Grab the next digit (0) from the dividend, add it to 77, then carry on: 770 / 90

Going ahead to step 3:
90 can be fit into 770 8 times, resulting in a remainder of 50.
The next digit of our result is 8. 
Result so far: 8.0
If we subtract 720 from 770, we get 50.
Append the next digit (2) from the dividend to 50 and continue with: 502 / 90

Moving on to step 4:
If we divide 502 by 90, we get 5 and a remainder of 52.
The number 5 becomes the next digit in our result. 
Result so far: 85.0
Subtract 450 from 502 to get 52.
Append the next digit (4) from the dividend to 52 and continue with: 524 / 90

Step 5:
When dividing 524 by 90, we get 5 with a remainder of 74.
The number 5 becomes the next digit in our result. 
Result so far: 855.0
Subtracting 450 from 524 leaves us with 74.
Grab the next digit (3) from the dividend, add it to 74, then carry on: 743 / 90

On to step 6:
743 divided by 90 is 8 with a remainder of 23.
The number 8 becomes the next digit in our result. 
Result so far: 8558.0
The remainder is 23 after subtracting 720 from 743.
Take the next digit (7) from the dividend and append it to 23, then repeat: 237 / 90

Let's proceed to step 7:
90 can be fit into 237 2 times, resulting in a remainder of 57.
Use 2 as the next digit of our solution. 
Result so far: 85582.0
Subtracting 180 from 237 leaves us with 57.
Include the next digit (9) from the dividend after 57, then repeat: 579 / 90

Going ahead to step 8:
579 divided by 90 is 6 with a remainder of 39.
Write down 6 as next digit of the result. 
Result so far: 855826.0
The remainder is 39 after subtracting 540 from 579.
Since there are no more digits in the dividend, we add a zero to the remainder making it 390, and continue the process.

Moving on to step 9:
When dividing 390 by 90, we get 4 with a remainder of 30.
Write down 4 as next digit of the result. 
Result so far: 855826.4
Deduct 360 from 390 and we're left 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.

Let's proceed to step 10:
If we divide 300 by 90, we get 3 and a remainder of 30.
Use 3 as the next digit of our solution. 
Result so far: 855826.43
If we subtract 270 from 300, we 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 11:
The number 90 fits into 300 3 times, leaving a remainder of 30.
Write down 3 as next digit of the result. 
Result so far: 855826.433
Deduct 270 from 300 and we're left 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.

In conclusion, the division gives 855826.433 with a balance of 0.003.