90123905 divided by 128 
Let's see how many times 128 fits into 90123905.

Going ahead to step 1:
If we divide 9 by 128, we get 0 and a remainder of 9.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 9 after subtracting 0 from 9.
Append the next digit (0) from the dividend to 9 and continue with: 90 / 128

On to step 2:
128 goes into 90 0 times with a remainder of 90.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 90 to get 90.
Grab the next digit (1) from the dividend, add it to 90, then carry on: 901 / 128

Going ahead to step 3:
128 goes into 901 7 times with a remainder of 5.
Record the quotient 7 as the next digit in the result. 
Result so far: 7.0
The remainder is 5 after subtracting 896 from 901.
Take the next digit (2) from the dividend and append it to 5, then repeat: 52 / 128

Let's proceed to step 4:
If we divide 52 by 128, we get 0 and a remainder of 52.
Put 0 as the next digit of the answer. 
Result so far: 70.0
If we subtract 0 from 52, we get 52.
Include the next digit (3) from the dividend after 52, then repeat: 523 / 128

On to step 5:
128 can be fit into 523 4 times, resulting in a remainder of 11.
Write down 4 as next digit of the result. 
Result so far: 704.0
Deduct 512 from 523 and we're left with 11.
Fetch the next digit (9) from the dividend, attach it to 11 and continue: 119 / 128

Advancing to step 6:
119 divided by 128 is 0 with a remainder of 119.
Use 0 as the next digit of our solution. 
Result so far: 7040.0
If we subtract 0 from 119, we get 119.
Include the next digit (0) from the dividend after 119, then repeat: 1190 / 128

Let's proceed to step 7:
If we divide 1190 by 128, we get 9 and a remainder of 38.
Write down 9 as next digit of the result. 
Result so far: 70409.0
If we subtract 1152 from 1190, we get 38.
Include the next digit (5) from the dividend after 38, then repeat: 385 / 128

Going ahead to step 8:
128 can be fit into 385 3 times, resulting in a remainder of 1.
The number 3 becomes the next digit in our result. 
Result so far: 704093.0
If we subtract 384 from 385, we get 1.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

Step 9:
If we divide 10 by 128, we get 0 and a remainder of 10.
The number 0 becomes the next digit in our result. 
Result so far: 704093.0
Subtracting 0 from 10 leaves us with 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Step 10:
100 divided by 128 is 0 with a remainder of 100.
Put 0 as the next digit of the answer. 
Result so far: 704093.0
If we subtract 0 from 100, we get 100.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1000, and continue the process.

After the division, we end up with 704093.0 and a remainder of 0.1.