Let's divide 74365509 by 520
We want to figure out the number of times 74365509 can be divided by 520.

Going ahead to step 1:
520 goes into 7 0 times with a remainder of 7.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 7, we end up with 7.
Take the next digit (4) from the dividend and append it to 7, then repeat: 74 / 520

Step 2:
If we divide 74 by 520, we get 0 and a remainder of 74.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 74, we end up with 74.
Append the next digit (3) from the dividend to 74 and continue with: 743 / 520

Moving on to step 3:
743 divided by 520 is 1 with a remainder of 223.
The next digit of our result is 1. 
Result so far: 1.0
The remainder is 223 after subtracting 520 from 743.
Grab the next digit (6) from the dividend, add it to 223, then carry on: 2236 / 520

Let's proceed to step 4:
520 can be fit into 2236 4 times, resulting in a remainder of 156.
Record the quotient 4 as the next digit in the result. 
Result so far: 14.0
Subtract 2080 from 2236 to get 156.
Include the next digit (5) from the dividend after 156, then repeat: 1565 / 520

Step 5:
If we divide 1565 by 520, we get 3 and a remainder of 5.
Put 3 as the next digit of the answer. 
Result so far: 143.0
The remainder is 5 after subtracting 1560 from 1565.
Include the next digit (5) from the dividend after 5, then repeat: 55 / 520

Advancing to step 6:
520 can be fit into 55 0 times, resulting in a remainder of 55.
Put 0 as the next digit of the answer. 
Result so far: 1430.0
If we take 0 away from 55, we end up with 55.
Take the next digit (0) from the dividend and append it to 55, then repeat: 550 / 520

Step 7:
The number 520 fits into 550 1 times, leaving a remainder of 30.
Put 1 as the next digit of the answer. 
Result so far: 14301.0
The remainder is 30 after subtracting 520 from 550.
Fetch the next digit (9) from the dividend, attach it to 30 and continue: 309 / 520

Advancing to step 8:
520 can be fit into 309 0 times, resulting in a remainder of 309.
The number 0 becomes the next digit in our result. 
Result so far: 143010.0
Deduct 0 from 309 and we're left with 309.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3090, and continue the process.

Let's proceed to step 9:
If we divide 3090 by 520, we get 5 and a remainder of 490.
The next digit of our result is 5. 
Result so far: 143010.5
Deduct 2600 from 3090 and we're left with 490.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4900, and continue the process.

Step 10:
4900 divided by 520 is 9 with a remainder of 220.
Put 9 as the next digit of the answer. 
Result so far: 143010.59
Subtracting 4680 from 4900 leaves us with 220.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2200, and continue the process.

Advancing to step 11:
The number 520 fits into 2200 4 times, leaving a remainder of 120.
Write down 4 as next digit of the result. 
Result so far: 143010.594
Deduct 2080 from 2200 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.

On to step 12:
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: 143010.5942
If we subtract 1040 from 1200, we 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.

Let's proceed to step 13:
520 can be fit into 1600 3 times, resulting in a remainder of 40.
The next digit of our result is 3. 
Result so far: 143010.59423
If we take 1560 away from 1600, we end up with 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

On to step 14:
When dividing 400 by 520, we get 0 with a remainder of 400.
Record the quotient 0 as the next digit in the result. 
Result so far: 143010.59423
If we subtract 0 from 400, we get 400.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4000, and continue the process.

Going ahead to step 15:
The number 520 fits into 4000 7 times, leaving a remainder of 360.
The number 7 becomes the next digit in our result. 
Result so far: 143010.5942307
The remainder is 360 after subtracting 3640 from 4000.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3600, and continue the process.

On to step 16:
If we divide 3600 by 520, we get 6 and a remainder of 480.
The next digit of our result is 6. 
Result so far: 143010.59423076
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.

The quotient of the division is 143010.59423076, and the remainder is 4.8e-07.