45609869 divided by 521 
Let's see how many times 521 fits into 45609869.

On to step 1:
521 can be fit into 4 0 times, resulting in a remainder of 4.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 4 after subtracting 0 from 4.
Bring next digit (5) of the dividend behind the 4 and repeat the process: 45 / 521

Let's proceed to step 2:
The number 521 fits into 45 0 times, leaving a remainder of 45.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 45 to get 45.
Append the next digit (6) from the dividend to 45 and continue with: 456 / 521

Advancing to step 3:
456 divided by 521 is 0 with a remainder of 456.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 456, we end up with 456.
Append the next digit (0) from the dividend to 456 and continue with: 4560 / 521

Step 4:
4560 divided by 521 is 8 with a remainder of 392.
Use 8 as the next digit of our solution. 
Result so far: 8.0
Subtract 4168 from 4560 to get 392.
Include the next digit (9) from the dividend after 392, then repeat: 3929 / 521

Moving on to step 5:
521 can be fit into 3929 7 times, resulting in a remainder of 282.
Write down 7 as next digit of the result. 
Result so far: 87.0
Subtract 3647 from 3929 to get 282.
Fetch the next digit (8) from the dividend, attach it to 282 and continue: 2828 / 521

On to step 6:
If we divide 2828 by 521, we get 5 and a remainder of 223.
Put 5 as the next digit of the answer. 
Result so far: 875.0
The remainder is 223 after subtracting 2605 from 2828.
Fetch the next digit (6) from the dividend, attach it to 223 and continue: 2236 / 521

Advancing to step 7:
2236 divided by 521 is 4 with a remainder of 152.
Write down 4 as next digit of the result. 
Result so far: 8754.0
The remainder is 152 after subtracting 2084 from 2236.
Grab the next digit (9) from the dividend, add it to 152, then carry on: 1529 / 521

Advancing to step 8:
The number 521 fits into 1529 2 times, leaving a remainder of 487.
Record the quotient 2 as the next digit in the result. 
Result so far: 87542.0
If we take 1042 away from 1529, we end up with 487.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4870, and continue the process.

Step 9:
When dividing 4870 by 521, we get 9 with a remainder of 181.
The next digit of our result is 9. 
Result so far: 87542.9
If we take 4689 away from 4870, we end up with 181.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1810, and continue the process.

Advancing to step 10:
521 goes into 1810 3 times with a remainder of 247.
Put 3 as the next digit of the answer. 
Result so far: 87542.93
Subtracting 1563 from 1810 leaves us with 247.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2470, and continue the process.

Moving on to step 11:
2470 divided by 521 is 4 with a remainder of 386.
Write down 4 as next digit of the result. 
Result so far: 87542.934
If we take 2084 away from 2470, we end up with 386.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3860, and continue the process.

Going ahead to step 12:
The number 521 fits into 3860 7 times, leaving a remainder of 213.
Write down 7 as next digit of the result. 
Result so far: 87542.9347
The remainder is 213 after subtracting 3647 from 3860.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2130, and continue the process.

Advancing to step 13:
521 can be fit into 2130 4 times, resulting in a remainder of 46.
Use 4 as the next digit of our solution. 
Result so far: 87542.93474
If we subtract 2084 from 2130, we get 46.
Since there are no more digits in the dividend, we add a zero to the remainder making it 460, and continue the process.

Going ahead to step 14:
521 can be fit into 460 0 times, resulting in a remainder of 460.
Record the quotient 0 as the next digit in the result. 
Result so far: 87542.93474
If we subtract 0 from 460, we get 460.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4600, and continue the process.

Moving on to step 15:
4600 divided by 521 is 8 with a remainder of 432.
The next digit of our result is 8. 
Result so far: 87542.9347408
Deduct 4168 from 4600 and we're left with 432.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4320, and continue the process.

Step 16:
521 goes into 4320 8 times with a remainder of 152.
The next digit of our result is 8. 
Result so far: 87542.93474088
Deduct 4168 from 4320 and we're left with 152.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1520, and continue the process.

The final result is 87542.93474088 with a remainder of 1.52e-07.