We're dividing 90709280 by 57 
We want to figure out the number of times 90709280 can be divided by 57.

Advancing to step 1:
57 can be fit into 9 0 times, resulting in a remainder of 9.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 9 to get 9.
Bring next digit (0) of the dividend behind the 9 and repeat the process: 90 / 57

Let's proceed to step 2:
When dividing 90 by 57, we get 1 with a remainder of 33.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
Subtract 57 from 90 to get 33.
Grab the next digit (7) from the dividend, add it to 33, then carry on: 337 / 57

Step 3:
The number 57 fits into 337 5 times, leaving a remainder of 52.
The number 5 becomes the next digit in our result. 
Result so far: 15.0
If we take 285 away from 337, we end up with 52.
Append the next digit (0) from the dividend to 52 and continue with: 520 / 57

Let's proceed to step 4:
The number 57 fits into 520 9 times, leaving a remainder of 7.
Write down 9 as next digit of the result. 
Result so far: 159.0
If we subtract 513 from 520, we get 7.
Include the next digit (9) from the dividend after 7, then repeat: 79 / 57

On to step 5:
The number 57 fits into 79 1 times, leaving a remainder of 22.
The number 1 becomes the next digit in our result. 
Result so far: 1591.0
If we subtract 57 from 79, we get 22.
Take the next digit (2) from the dividend and append it to 22, then repeat: 222 / 57

Step 6:
The number 57 fits into 222 3 times, leaving a remainder of 51.
Put 3 as the next digit of the answer. 
Result so far: 15913.0
The remainder is 51 after subtracting 171 from 222.
Include the next digit (8) from the dividend after 51, then repeat: 518 / 57

Advancing to step 7:
518 divided by 57 is 9 with a remainder of 5.
The number 9 becomes the next digit in our result. 
Result so far: 159139.0
If we take 513 away from 518, we end up with 5.
Fetch the next digit (0) from the dividend, attach it to 5 and continue: 50 / 57

Let's proceed to step 8:
The number 57 fits into 50 0 times, leaving a remainder of 50.
Record the quotient 0 as the next digit in the result. 
Result so far: 1591390.0
If we take 0 away from 50, we end up with 50.
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 9:
The number 57 fits into 500 8 times, leaving a remainder of 44.
Record the quotient 8 as the next digit in the result. 
Result so far: 1591390.8
If we subtract 456 from 500, we get 44.
Since there are no more digits in the dividend, we add a zero to the remainder making it 440, and continue the process.

Moving on to step 10:
If we divide 440 by 57, we get 7 and a remainder of 41.
Write down 7 as next digit of the result. 
Result so far: 1591390.87
If we subtract 399 from 440, we get 41.
Since there are no more digits in the dividend, we add a zero to the remainder making it 410, and continue the process.

Moving on to step 11:
If we divide 410 by 57, we get 7 and a remainder of 11.
Write down 7 as next digit of the result. 
Result so far: 1591390.877
Subtracting 399 from 410 leaves us with 11.
Since there are no more digits in the dividend, we add a zero to the remainder making it 110, and continue the process.

The final result is 1591390.877 with a remainder of 0.0011.