39525971 ÷ 501 
The aim is to understand the frequency of 501 in 39525971.

Moving on to step 1:
3 divided by 501 is 0 with a remainder of 3.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 3, we get 3.
Take the next digit (9) from the dividend and append it to 3, then repeat: 39 / 501

On to step 2:
When dividing 39 by 501, we get 0 with a remainder of 39.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 39 to get 39.
Bring next digit (5) of the dividend behind the 39 and repeat the process: 395 / 501

Advancing to step 3:
501 can be fit into 395 0 times, resulting in a remainder of 395.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 395 after subtracting 0 from 395.
Bring next digit (2) of the dividend behind the 395 and repeat the process: 3952 / 501

Let's proceed to step 4:
When dividing 3952 by 501, we get 7 with a remainder of 445.
Record the quotient 7 as the next digit in the result. 
Result so far: 7.0
Subtracting 3507 from 3952 leaves us with 445.
Fetch the next digit (5) from the dividend, attach it to 445 and continue: 4455 / 501

Advancing to step 5:
501 can be fit into 4455 8 times, resulting in a remainder of 447.
The next digit of our result is 8. 
Result so far: 78.0
If we subtract 4008 from 4455, we get 447.
Grab the next digit (9) from the dividend, add it to 447, then carry on: 4479 / 501

Step 6:
501 goes into 4479 8 times with a remainder of 471.
The number 8 becomes the next digit in our result. 
Result so far: 788.0
Subtract 4008 from 4479 to get 471.
Append the next digit (7) from the dividend to 471 and continue with: 4717 / 501

Going ahead to step 7:
The number 501 fits into 4717 9 times, leaving a remainder of 208.
Put 9 as the next digit of the answer. 
Result so far: 7889.0
Subtracting 4509 from 4717 leaves us with 208.
Append the next digit (1) from the dividend to 208 and continue with: 2081 / 501

Advancing to step 8:
501 can be fit into 2081 4 times, resulting in a remainder of 77.
Record the quotient 4 as the next digit in the result. 
Result so far: 78894.0
Subtract 2004 from 2081 to get 77.
Since there are no more digits in the dividend, we add a zero to the remainder making it 770, and continue the process.

On to step 9:
501 goes into 770 1 times with a remainder of 269.
Write down 1 as next digit of the result. 
Result so far: 78894.1
If we take 501 away from 770, we end up with 269.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2690, and continue the process.

Going ahead to step 10:
501 goes into 2690 5 times with a remainder of 185.
The number 5 becomes the next digit in our result. 
Result so far: 78894.15
If we subtract 2505 from 2690, we get 185.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1850, and continue the process.

On to step 11:
When dividing 1850 by 501, we get 3 with a remainder of 347.
The next digit of our result is 3. 
Result so far: 78894.153
If we take 1503 away from 1850, we end up with 347.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3470, and continue the process.

On to step 12:
If we divide 3470 by 501, we get 6 and a remainder of 464.
Write down 6 as next digit of the result. 
Result so far: 78894.1536
Subtracting 3006 from 3470 leaves us with 464.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4640, and continue the process.

Going ahead to step 13:
501 goes into 4640 9 times with a remainder of 131.
The next digit of our result is 9. 
Result so far: 78894.15369
Subtracting 4509 from 4640 leaves us with 131.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1310, and continue the process.

Moving on to step 14:
501 goes into 1310 2 times with a remainder of 308.
Put 2 as the next digit of the answer. 
Result so far: 78894.153692
Deduct 1002 from 1310 and we're left with 308.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3080, and continue the process.

Moving on to step 15:
501 can be fit into 3080 6 times, resulting in a remainder of 74.
Record the quotient 6 as the next digit in the result. 
Result so far: 78894.1536926
If we subtract 3006 from 3080, we get 74.
Since there are no more digits in the dividend, we add a zero to the remainder making it 740, and continue the process.

Step 16:
501 can be fit into 740 1 times, resulting in a remainder of 239.
Record the quotient 1 as the next digit in the result. 
Result so far: 78894.15369261
Deduct 501 from 740 and we're left with 239.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2390, and continue the process.

The final result is 78894.15369261 with a remainder of 2.39e-07.