90395140 divided by 521 
Let's see how many times 521 fits into 90395140.

Let's proceed to step 1:
9 divided by 521 is 0 with a remainder of 9.
Use 0 as the next digit of our solution. 
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 / 521

Let's proceed to step 2:
When dividing 90 by 521, we get 0 with 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.
Grab the next digit (3) from the dividend, add it to 90, then carry on: 903 / 521

Moving on to step 3:
521 can be fit into 903 1 times, resulting in a remainder of 382.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
Subtracting 521 from 903 leaves us with 382.
Include the next digit (9) from the dividend after 382, then repeat: 3829 / 521

Let's proceed to step 4:
521 can be fit into 3829 7 times, resulting in a remainder of 182.
Use 7 as the next digit of our solution. 
Result so far: 17.0
Subtract 3647 from 3829 to get 182.
Include the next digit (5) from the dividend after 182, then repeat: 1825 / 521

Advancing to step 5:
521 can be fit into 1825 3 times, resulting in a remainder of 262.
The next digit of our result is 3. 
Result so far: 173.0
Subtracting 1563 from 1825 leaves us with 262.
Grab the next digit (1) from the dividend, add it to 262, then carry on: 2621 / 521

Moving on to step 6:
2621 divided by 521 is 5 with a remainder of 16.
Write down 5 as next digit of the result. 
Result so far: 1735.0
Subtract 2605 from 2621 to get 16.
Bring next digit (4) of the dividend behind the 16 and repeat the process: 164 / 521

Let's proceed to step 7:
When dividing 164 by 521, we get 0 with a remainder of 164.
The next digit of our result is 0. 
Result so far: 17350.0
Subtracting 0 from 164 leaves us with 164.
Append the next digit (0) from the dividend to 164 and continue with: 1640 / 521

Let's proceed to step 8:
521 goes into 1640 3 times with a remainder of 77.
Use 3 as the next digit of our solution. 
Result so far: 173503.0
The remainder is 77 after subtracting 1563 from 1640.
Since there are no more digits in the dividend, we add a zero to the remainder making it 770, and continue the process.

Advancing to step 9:
The number 521 fits into 770 1 times, leaving a remainder of 249.
The next digit of our result is 1. 
Result so far: 173503.1
If we take 521 away from 770, we end up with 249.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2490, and continue the process.

Step 10:
2490 divided by 521 is 4 with a remainder of 406.
The next digit of our result is 4. 
Result so far: 173503.14
If we subtract 2084 from 2490, we get 406.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4060, and continue the process.

Advancing to step 11:
When dividing 4060 by 521, we get 7 with a remainder of 413.
The next digit of our result is 7. 
Result so far: 173503.147
If we subtract 3647 from 4060, we get 413.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4130, and continue the process.

On to step 12:
4130 divided by 521 is 7 with a remainder of 483.
Use 7 as the next digit of our solution. 
Result so far: 173503.1477
If we take 3647 away from 4130, we end up with 483.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4830, and continue the process.

After the division, we end up with 173503.1477 and a remainder of 0.00483.