We're dividing 90402910 by 253 
We want to figure out the number of times 90402910 can be divided by 253.

Going ahead to step 1:
If we divide 9 by 253, we get 0 and a remainder of 9.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we take 0 away from 9, we end up with 9.
Fetch the next digit (0) from the dividend, attach it to 9 and continue: 90 / 253

Going ahead to step 2:
253 can be fit into 90 0 times, resulting in a remainder of 90.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 90, we get 90.
Include the next digit (4) from the dividend after 90, then repeat: 904 / 253

Moving on to step 3:
The number 253 fits into 904 3 times, leaving a remainder of 145.
Use 3 as the next digit of our solution. 
Result so far: 3.0
Subtract 759 from 904 to get 145.
Include the next digit (0) from the dividend after 145, then repeat: 1450 / 253

Let's proceed to step 4:
253 can be fit into 1450 5 times, resulting in a remainder of 185.
The next digit of our result is 5. 
Result so far: 35.0
If we take 1265 away from 1450, we end up with 185.
Include the next digit (2) from the dividend after 185, then repeat: 1852 / 253

Moving on to step 5:
253 goes into 1852 7 times with a remainder of 81.
The next digit of our result is 7. 
Result so far: 357.0
Subtract 1771 from 1852 to get 81.
Bring next digit (9) of the dividend behind the 81 and repeat the process: 819 / 253

Step 6:
819 divided by 253 is 3 with a remainder of 60.
The next digit of our result is 3. 
Result so far: 3573.0
The remainder is 60 after subtracting 759 from 819.
Include the next digit (1) from the dividend after 60, then repeat: 601 / 253

On to step 7:
601 divided by 253 is 2 with a remainder of 95.
The number 2 becomes the next digit in our result. 
Result so far: 35732.0
If we subtract 506 from 601, we get 95.
Fetch the next digit (0) from the dividend, attach it to 95 and continue: 950 / 253

Let's proceed to step 8:
253 goes into 950 3 times with a remainder of 191.
Put 3 as the next digit of the answer. 
Result so far: 357323.0
Subtract 759 from 950 to get 191.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1910, and continue the process.

Advancing to step 9:
1910 divided by 253 is 7 with a remainder of 139.
Write down 7 as next digit of the result. 
Result so far: 357323.7
If we subtract 1771 from 1910, we get 139.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1390, and continue the process.

Step 10:
If we divide 1390 by 253, we get 5 and a remainder of 125.
The number 5 becomes the next digit in our result. 
Result so far: 357323.75
Subtract 1265 from 1390 to get 125.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1250, and continue the process.

Going ahead to step 11:
If we divide 1250 by 253, we get 4 and a remainder of 238.
Use 4 as the next digit of our solution. 
Result so far: 357323.754
Subtract 1012 from 1250 to get 238.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2380, and continue the process.

Let's proceed to step 12:
2380 divided by 253 is 9 with a remainder of 103.
The next digit of our result is 9. 
Result so far: 357323.7549
Subtract 2277 from 2380 to get 103.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1030, and continue the process.

Moving on to step 13:
The number 253 fits into 1030 4 times, leaving a remainder of 18.
The number 4 becomes the next digit in our result. 
Result so far: 357323.75494
If we take 1012 away from 1030, we end up with 18.
Since there are no more digits in the dividend, we add a zero to the remainder making it 180, and continue the process.

On to step 14:
The number 253 fits into 180 0 times, leaving a remainder of 180.
The next digit of our result is 0. 
Result so far: 357323.75494
Subtract 0 from 180 to get 180.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1800, and continue the process.

On to step 15:
1800 divided by 253 is 7 with a remainder of 29.
Use 7 as the next digit of our solution. 
Result so far: 357323.7549407
The remainder is 29 after subtracting 1771 from 1800.
Since there are no more digits in the dividend, we add a zero to the remainder making it 290, and continue the process.

Let's proceed to step 16:
253 goes into 290 1 times with a remainder of 37.
Use 1 as the next digit of our solution. 
Result so far: 357323.75494071
Subtract 253 from 290 to get 37.
Since there are no more digits in the dividend, we add a zero to the remainder making it 370, and continue the process.

After the division, we end up with 357323.75494071 and a remainder of 3.7e-08.