Let's divide 75721338 by 520
We want to figure out the number of times 75721338 can be divided by 520.

Let's proceed 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.
Bring next digit (5) of the dividend behind the 7 and repeat the process: 75 / 520

Going ahead to step 2:
When dividing 75 by 520, we get 0 with a remainder of 75.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 75 to get 75.
Bring next digit (7) of the dividend behind the 75 and repeat the process: 757 / 520

Going ahead to step 3:
If we divide 757 by 520, we get 1 and a remainder of 237.
The next digit of our result is 1. 
Result so far: 1.0
The remainder is 237 after subtracting 520 from 757.
Bring next digit (2) of the dividend behind the 237 and repeat the process: 2372 / 520

Advancing to step 4:
520 goes into 2372 4 times with a remainder of 292.
Put 4 as the next digit of the answer. 
Result so far: 14.0
The remainder is 292 after subtracting 2080 from 2372.
Bring next digit (1) of the dividend behind the 292 and repeat the process: 2921 / 520

Step 5:
520 goes into 2921 5 times with a remainder of 321.
Use 5 as the next digit of our solution. 
Result so far: 145.0
Deduct 2600 from 2921 and we're left with 321.
Fetch the next digit (3) from the dividend, attach it to 321 and continue: 3213 / 520

Step 6:
520 can be fit into 3213 6 times, resulting in a remainder of 93.
Record the quotient 6 as the next digit in the result. 
Result so far: 1456.0
Subtracting 3120 from 3213 leaves us with 93.
Append the next digit (3) from the dividend to 93 and continue with: 933 / 520

Let's proceed to step 7:
520 can be fit into 933 1 times, resulting in a remainder of 413.
The next digit of our result is 1. 
Result so far: 14561.0
If we subtract 520 from 933, we get 413.
Grab the next digit (8) from the dividend, add it to 413, then carry on: 4138 / 520

Let's proceed to step 8:
If we divide 4138 by 520, we get 7 and a remainder of 498.
The number 7 becomes the next digit in our result. 
Result so far: 145617.0
The remainder is 498 after subtracting 3640 from 4138.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4980, and continue the process.

Going ahead to step 9:
4980 divided by 520 is 9 with a remainder of 300.
Record the quotient 9 as the next digit in the result. 
Result so far: 145617.9
Deduct 4680 from 4980 and we're left with 300.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3000, and continue the process.

Advancing to step 10:
The number 520 fits into 3000 5 times, leaving a remainder of 400.
Put 5 as the next digit of the answer. 
Result so far: 145617.95
If we subtract 2600 from 3000, 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.

On to step 11:
If we divide 4000 by 520, we get 7 and a remainder of 360.
The number 7 becomes the next digit in our result. 
Result so far: 145617.957
If we subtract 3640 from 4000, we 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.

On to step 12:
When dividing 3600 by 520, we get 6 with a remainder of 480.
Write down 6 as next digit of the result. 
Result so far: 145617.9576
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.

Going ahead to step 13:
When dividing 4800 by 520, we get 9 with a remainder of 120.
Write down 9 as next digit of the result. 
Result so far: 145617.95769
The remainder is 120 after subtracting 4680 from 4800.
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 14:
1200 divided by 520 is 2 with a remainder of 160.
The number 2 becomes the next digit in our result. 
Result so far: 145617.957692
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.

On to step 15:
If we divide 1600 by 520, we get 3 and a remainder of 40.
Use 3 as the next digit of our solution. 
Result so far: 145617.9576923
Subtracting 1560 from 1600 leaves us 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 16:
If we divide 400 by 520, we get 0 and a remainder of 400.
The next digit of our result is 0. 
Result so far: 145617.9576923
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.

After the division, we end up with 145617.9576923 and a remainder of 4e-07.