Let's divide 18901671 by 501
The aim is to understand the frequency of 501 in 18901671.

Let's proceed to step 1:
501 goes into 1 0 times with a remainder of 1.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtracting 0 from 1 leaves us with 1.
Grab the next digit (8) from the dividend, add it to 1, then carry on: 18 / 501

Advancing to step 2:
18 divided by 501 is 0 with a remainder of 18.
The next digit of our result is 0. 
Result so far: 0.0
Subtract 0 from 18 to get 18.
Take the next digit (9) from the dividend and append it to 18, then repeat: 189 / 501

Moving on to step 3:
The number 501 fits into 189 0 times, leaving a remainder of 189.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 189 to get 189.
Include the next digit (0) from the dividend after 189, then repeat: 1890 / 501

Let's proceed to step 4:
When dividing 1890 by 501, we get 3 with a remainder of 387.
The number 3 becomes the next digit in our result. 
Result so far: 3.0
If we subtract 1503 from 1890, we get 387.
Fetch the next digit (1) from the dividend, attach it to 387 and continue: 3871 / 501

Step 5:
The number 501 fits into 3871 7 times, leaving a remainder of 364.
The next digit of our result is 7. 
Result so far: 37.0
The remainder is 364 after subtracting 3507 from 3871.
Bring next digit (6) of the dividend behind the 364 and repeat the process: 3646 / 501

Step 6:
3646 divided by 501 is 7 with a remainder of 139.
Put 7 as the next digit of the answer. 
Result so far: 377.0
If we subtract 3507 from 3646, we get 139.
Take the next digit (7) from the dividend and append it to 139, then repeat: 1397 / 501

Advancing to step 7:
The number 501 fits into 1397 2 times, leaving a remainder of 395.
Write down 2 as next digit of the result. 
Result so far: 3772.0
The remainder is 395 after subtracting 1002 from 1397.
Include the next digit (1) from the dividend after 395, then repeat: 3951 / 501

Step 8:
When dividing 3951 by 501, we get 7 with a remainder of 444.
Record the quotient 7 as the next digit in the result. 
Result so far: 37727.0
Subtracting 3507 from 3951 leaves us with 444.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4440, and continue the process.

Advancing to step 9:
501 goes into 4440 8 times with a remainder of 432.
Put 8 as the next digit of the answer. 
Result so far: 37727.8
If we take 4008 away from 4440, we end up with 432.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4320, and continue the process.

Step 10:
If we divide 4320 by 501, we get 8 and a remainder of 312.
Use 8 as the next digit of our solution. 
Result so far: 37727.88
Deduct 4008 from 4320 and we're left with 312.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3120, and continue the process.

The final outcome is 37727.88, with a leftover of 0.312.