We're dividing 910500 by 51 
The aim is to understand the frequency of 51 in 910500.

Step 1:
9 divided by 51 is 0 with a remainder of 9.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 9 to get 9.
Include the next digit (1) from the dividend after 9, then repeat: 91 / 51

Let's proceed to step 2:
When dividing 91 by 51, we get 1 with a remainder of 40.
Put 1 as the next digit of the answer. 
Result so far: 1.0
If we subtract 51 from 91, we get 40.
Bring next digit (0) of the dividend behind the 40 and repeat the process: 400 / 51

Step 3:
The number 51 fits into 400 7 times, leaving a remainder of 43.
Write down 7 as next digit of the result. 
Result so far: 17.0
Subtracting 357 from 400 leaves us with 43.
Fetch the next digit (5) from the dividend, attach it to 43 and continue: 435 / 51

Advancing to step 4:
51 goes into 435 8 times with a remainder of 27.
The next digit of our result is 8. 
Result so far: 178.0
If we subtract 408 from 435, we get 27.
Append the next digit (0) from the dividend to 27 and continue with: 270 / 51

Moving on to step 5:
51 goes into 270 5 times with a remainder of 15.
The next digit of our result is 5. 
Result so far: 1785.0
Deduct 255 from 270 and we're left with 15.
Include the next digit (0) from the dividend after 15, then repeat: 150 / 51

Moving on to step 6:
When dividing 150 by 51, we get 2 with a remainder of 48.
Write down 2 as next digit of the result. 
Result so far: 17852.0
If we take 102 away from 150, we end up with 48.
Since there are no more digits in the dividend, we add a zero to the remainder making it 480, and continue the process.

Going ahead to step 7:
The number 51 fits into 480 9 times, leaving a remainder of 21.
Put 9 as the next digit of the answer. 
Result so far: 17852.9
If we take 459 away from 480, we end up with 21.
Since there are no more digits in the dividend, we add a zero to the remainder making it 210, and continue the process.

Advancing to step 8:
When dividing 210 by 51, we get 4 with a remainder of 6.
Record the quotient 4 as the next digit in the result. 
Result so far: 17852.94
If we subtract 204 from 210, we get 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Step 9:
When dividing 60 by 51, we get 1 with a remainder of 9.
The number 1 becomes the next digit in our result. 
Result so far: 17852.941
The remainder is 9 after subtracting 51 from 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 90, and continue the process.

Moving on to step 10:
When dividing 90 by 51, we get 1 with a remainder of 39.
Put 1 as the next digit of the answer. 
Result so far: 17852.9411
Subtract 51 from 90 to get 39.
Since there are no more digits in the dividend, we add a zero to the remainder making it 390, and continue the process.

The final result is 17852.9411 with a remainder of 0.00039.