We look at the division of 90342448 by 515 
We want to divide 90342448 by 515.

Moving on to step 1:
9 divided by 515 is 0 with a remainder of 9.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 9 and we're left with 9.
Grab the next digit (0) from the dividend, add it to 9, then carry on: 90 / 515

Going ahead to step 2:
When dividing 90 by 515, we get 0 with a remainder of 90.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 90 after subtracting 0 from 90.
Bring next digit (3) of the dividend behind the 90 and repeat the process: 903 / 515

Step 3:
The number 515 fits into 903 1 times, leaving a remainder of 388.
The next digit of our result is 1. 
Result so far: 1.0
Subtracting 515 from 903 leaves us with 388.
Bring next digit (4) of the dividend behind the 388 and repeat the process: 3884 / 515

Advancing to step 4:
515 goes into 3884 7 times with a remainder of 279.
Record the quotient 7 as the next digit in the result. 
Result so far: 17.0
If we subtract 3605 from 3884, we get 279.
Grab the next digit (2) from the dividend, add it to 279, then carry on: 2792 / 515

Step 5:
2792 divided by 515 is 5 with a remainder of 217.
Write down 5 as next digit of the result. 
Result so far: 175.0
Subtracting 2575 from 2792 leaves us with 217.
Grab the next digit (4) from the dividend, add it to 217, then carry on: 2174 / 515

Step 6:
If we divide 2174 by 515, we get 4 and a remainder of 114.
The next digit of our result is 4. 
Result so far: 1754.0
Subtracting 2060 from 2174 leaves us with 114.
Bring next digit (4) of the dividend behind the 114 and repeat the process: 1144 / 515

Going ahead to step 7:
515 can be fit into 1144 2 times, resulting in a remainder of 114.
Use 2 as the next digit of our solution. 
Result so far: 17542.0
If we subtract 1030 from 1144, we get 114.
Bring next digit (8) of the dividend behind the 114 and repeat the process: 1148 / 515

Moving on to step 8:
515 goes into 1148 2 times with a remainder of 118.
Record the quotient 2 as the next digit in the result. 
Result so far: 175422.0
Subtracting 1030 from 1148 leaves us with 118.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1180, and continue the process.

Going ahead to step 9:
When dividing 1180 by 515, we get 2 with a remainder of 150.
Write down 2 as next digit of the result. 
Result so far: 175422.2
The remainder is 150 after subtracting 1030 from 1180.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1500, and continue the process.

Moving on to step 10:
If we divide 1500 by 515, we get 2 and a remainder of 470.
Put 2 as the next digit of the answer. 
Result so far: 175422.22
The remainder is 470 after subtracting 1030 from 1500.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4700, and continue the process.

After the division, we end up with 175422.22 and a remainder of 0.47.