We're dividing 51272156 by 801 
The aim is to understand the frequency of 801 in 51272156.

Moving on to step 1:
801 goes into 5 0 times with a remainder of 5.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 5 and we're left with 5.
Bring next digit (1) of the dividend behind the 5 and repeat the process: 51 / 801

Advancing to step 2:
The number 801 fits into 51 0 times, leaving a remainder of 51.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 51 and we're left with 51.
Append the next digit (2) from the dividend to 51 and continue with: 512 / 801

Advancing to step 3:
The number 801 fits into 512 0 times, leaving a remainder of 512.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtracting 0 from 512 leaves us with 512.
Append the next digit (7) from the dividend to 512 and continue with: 5127 / 801

Advancing to step 4:
If we divide 5127 by 801, we get 6 and a remainder of 321.
Use 6 as the next digit of our solution. 
Result so far: 6.0
Subtracting 4806 from 5127 leaves us with 321.
Include the next digit (2) from the dividend after 321, then repeat: 3212 / 801

Step 5:
801 can be fit into 3212 4 times, resulting in a remainder of 8.
Use 4 as the next digit of our solution. 
Result so far: 64.0
Subtract 3204 from 3212 to get 8.
Append the next digit (1) from the dividend to 8 and continue with: 81 / 801

On to step 6:
If we divide 81 by 801, we get 0 and a remainder of 81.
Use 0 as the next digit of our solution. 
Result so far: 640.0
If we subtract 0 from 81, we get 81.
Include the next digit (5) from the dividend after 81, then repeat: 815 / 801

Going ahead to step 7:
815 divided by 801 is 1 with a remainder of 14.
The number 1 becomes the next digit in our result. 
Result so far: 6401.0
Subtract 801 from 815 to get 14.
Include the next digit (6) from the dividend after 14, then repeat: 146 / 801

Moving on to step 8:
146 divided by 801 is 0 with a remainder of 146.
Put 0 as the next digit of the answer. 
Result so far: 64010.0
Subtracting 0 from 146 leaves us with 146.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1460, and continue the process.

Moving on to step 9:
If we divide 1460 by 801, we get 1 and a remainder of 659.
The number 1 becomes the next digit in our result. 
Result so far: 64010.1
Subtracting 801 from 1460 leaves us with 659.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6590, and continue the process.

Advancing to step 10:
When dividing 6590 by 801, we get 8 with a remainder of 182.
Record the quotient 8 as the next digit in the result. 
Result so far: 64010.18
If we take 6408 away from 6590, we end up with 182.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1820, and continue the process.

Step 11:
If we divide 1820 by 801, we get 2 and a remainder of 218.
The number 2 becomes the next digit in our result. 
Result so far: 64010.182
If we subtract 1602 from 1820, we get 218.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2180, and continue the process.

Let's proceed to step 12:
When dividing 2180 by 801, we get 2 with a remainder of 578.
The next digit of our result is 2. 
Result so far: 64010.1822
Deduct 1602 from 2180 and we're left with 578.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5780, and continue the process.

The final result is 64010.1822 with a remainder of 0.00578.