Let's divide 42331446 by 520
We want to figure out the number of times 42331446 can be divided by 520.

Step 1:
When dividing 4 by 520, we get 0 with a remainder of 4.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 4 and we're left with 4.
Append the next digit (2) from the dividend to 4 and continue with: 42 / 520

On to step 2:
If we divide 42 by 520, we get 0 and a remainder of 42.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 42 after subtracting 0 from 42.
Grab the next digit (3) from the dividend, add it to 42, then carry on: 423 / 520

Going ahead to step 3:
The number 520 fits into 423 0 times, leaving a remainder of 423.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 423 to get 423.
Fetch the next digit (3) from the dividend, attach it to 423 and continue: 4233 / 520

Let's proceed to step 4:
If we divide 4233 by 520, we get 8 and a remainder of 73.
The next digit of our result is 8. 
Result so far: 8.0
If we take 4160 away from 4233, we end up with 73.
Grab the next digit (1) from the dividend, add it to 73, then carry on: 731 / 520

On to step 5:
520 can be fit into 731 1 times, resulting in a remainder of 211.
Write down 1 as next digit of the result. 
Result so far: 81.0
The remainder is 211 after subtracting 520 from 731.
Include the next digit (4) from the dividend after 211, then repeat: 2114 / 520

Going ahead to step 6:
520 can be fit into 2114 4 times, resulting in a remainder of 34.
The number 4 becomes the next digit in our result. 
Result so far: 814.0
Subtract 2080 from 2114 to get 34.
Include the next digit (4) from the dividend after 34, then repeat: 344 / 520

On to step 7:
If we divide 344 by 520, we get 0 and a remainder of 344.
Put 0 as the next digit of the answer. 
Result so far: 8140.0
Subtract 0 from 344 to get 344.
Include the next digit (6) from the dividend after 344, then repeat: 3446 / 520

Step 8:
520 goes into 3446 6 times with a remainder of 326.
Put 6 as the next digit of the answer. 
Result so far: 81406.0
Deduct 3120 from 3446 and we're left with 326.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3260, and continue the process.

Step 9:
When dividing 3260 by 520, we get 6 with a remainder of 140.
Write down 6 as next digit of the result. 
Result so far: 81406.6
If we take 3120 away from 3260, we end up with 140.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1400, and continue the process.

Moving on to step 10:
The number 520 fits into 1400 2 times, leaving a remainder of 360.
The next digit of our result is 2. 
Result so far: 81406.62
Subtract 1040 from 1400 to get 360.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3600, and continue the process.

Let's proceed to step 11:
520 can be fit into 3600 6 times, resulting in a remainder of 480.
Record the quotient 6 as the next digit in the result. 
Result so far: 81406.626
Subtracting 3120 from 3600 leaves us with 480.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4800, and continue the process.

Let's proceed to step 12:
When dividing 4800 by 520, we get 9 with a remainder of 120.
Put 9 as the next digit of the answer. 
Result so far: 81406.6269
Deduct 4680 from 4800 and we're left with 120.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1200, and continue the process.

Moving on to step 13:
The number 520 fits into 1200 2 times, leaving a remainder of 160.
Use 2 as the next digit of our solution. 
Result so far: 81406.62692
Subtract 1040 from 1200 to get 160.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1600, and continue the process.

Step 14:
The number 520 fits into 1600 3 times, leaving a remainder of 40.
Write down 3 as next digit of the result. 
Result so far: 81406.626923
The remainder is 40 after subtracting 1560 from 1600.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Going ahead to step 15:
520 can be fit into 400 0 times, resulting in a remainder of 400.
The next digit of our result is 0. 
Result so far: 81406.626923
If we take 0 away from 400, we end up with 400.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4000, and continue the process.

On to step 16:
520 goes into 4000 7 times with a remainder of 360.
The next digit of our result is 7. 
Result so far: 81406.62692307
Subtract 3640 from 4000 to get 360.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3600, and continue the process.

The final result is 81406.62692307 with a remainder of 3.6e-07.