74940748 ÷ 520 
The aim is to understand the frequency of 520 in 74940748.

Moving on to step 1:
520 can be fit into 7 0 times, resulting in a remainder of 7.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 7 and we're left with 7.
Include the next digit (4) from the dividend after 7, then repeat: 74 / 520

Advancing to step 2:
74 divided by 520 is 0 with a remainder of 74.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 74, we end up with 74.
Grab the next digit (9) from the dividend, add it to 74, then carry on: 749 / 520

Going ahead to step 3:
520 can be fit into 749 1 times, resulting in a remainder of 229.
Use 1 as the next digit of our solution. 
Result so far: 1.0
If we subtract 520 from 749, we get 229.
Include the next digit (4) from the dividend after 229, then repeat: 2294 / 520

Let's proceed to step 4:
If we divide 2294 by 520, we get 4 and a remainder of 214.
The next digit of our result is 4. 
Result so far: 14.0
The remainder is 214 after subtracting 2080 from 2294.
Include the next digit (0) from the dividend after 214, then repeat: 2140 / 520

Advancing to step 5:
520 can be fit into 2140 4 times, resulting in a remainder of 60.
Use 4 as the next digit of our solution. 
Result so far: 144.0
Deduct 2080 from 2140 and we're left with 60.
Append the next digit (7) from the dividend to 60 and continue with: 607 / 520

Let's proceed to step 6:
520 goes into 607 1 times with a remainder of 87.
Use 1 as the next digit of our solution. 
Result so far: 1441.0
If we take 520 away from 607, we end up with 87.
Take the next digit (4) from the dividend and append it to 87, then repeat: 874 / 520

Advancing to step 7:
When dividing 874 by 520, we get 1 with a remainder of 354.
Use 1 as the next digit of our solution. 
Result so far: 14411.0
The remainder is 354 after subtracting 520 from 874.
Append the next digit (8) from the dividend to 354 and continue with: 3548 / 520

Let's proceed to step 8:
If we divide 3548 by 520, we get 6 and a remainder of 428.
Put 6 as the next digit of the answer. 
Result so far: 144116.0
If we subtract 3120 from 3548, we get 428.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4280, and continue the process.

Step 9:
The number 520 fits into 4280 8 times, leaving a remainder of 120.
Record the quotient 8 as the next digit in the result. 
Result so far: 144116.8
Subtracting 4160 from 4280 leaves us 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.

Step 10:
520 can be fit into 1200 2 times, resulting in a remainder of 160.
Write down 2 as next digit of the result. 
Result so far: 144116.82
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.

Step 11:
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: 144116.823
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.

Moving on to step 12:
520 goes into 400 0 times with a remainder of 400.
The number 0 becomes the next digit in our result. 
Result so far: 144116.823
The remainder is 400 after subtracting 0 from 400.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4000, and continue the process.

Step 13:
The number 520 fits into 4000 7 times, leaving a remainder of 360.
Use 7 as the next digit of our solution. 
Result so far: 144116.82307
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 14:
520 can be fit into 3600 6 times, resulting in a remainder of 480.
The number 6 becomes the next digit in our result. 
Result so far: 144116.823076
The remainder is 480 after subtracting 3120 from 3600.
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 15:
The number 520 fits into 4800 9 times, leaving a remainder of 120.
The number 9 becomes the next digit in our result. 
Result so far: 144116.8230769
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.

Let's proceed to step 16:
520 goes into 1200 2 times with a remainder of 160.
The next digit of our result is 2. 
Result so far: 144116.82307692
Subtracting 1040 from 1200 leaves us with 160.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1600, and continue the process.

In conclusion, the division gives 144116.82307692 with a balance of 1.6e-07.