We look at the division of 70893 by 51 
The aim is to understand the frequency of 51 in 70893.

Advancing to step 1:
When dividing 7 by 51, we get 0 with a remainder of 7.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 7 to get 7.
Bring next digit (0) of the dividend behind the 7 and repeat the process: 70 / 51

On to step 2:
51 goes into 70 1 times with a remainder of 19.
The next digit of our result is 1. 
Result so far: 1.0
Subtracting 51 from 70 leaves us with 19.
Append the next digit (8) from the dividend to 19 and continue with: 198 / 51

Advancing to step 3:
When dividing 198 by 51, we get 3 with a remainder of 45.
Record the quotient 3 as the next digit in the result. 
Result so far: 13.0
Subtracting 153 from 198 leaves us with 45.
Include the next digit (9) from the dividend after 45, then repeat: 459 / 51

Going ahead to step 4:
If we divide 459 by 51, we get 9 and a remainder of 0.
Record the quotient 9 as the next digit in the result. 
Result so far: 139.0
The remainder is 0 after subtracting 459 from 459.
Grab the next digit (3) from the dividend, add it to 0, then carry on: 3 / 51

Going ahead to step 5:
3 divided by 51 is 0 with a remainder of 3.
Use 0 as the next digit of our solution. 
Result so far: 1390.0
The remainder is 3 after subtracting 0 from 3.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

Moving on to step 6:
30 divided by 51 is 0 with a remainder of 30.
The number 0 becomes the next digit in our result. 
Result so far: 1390.0
Deduct 0 from 30 and we're left with 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

On to step 7:
The number 51 fits into 300 5 times, leaving a remainder of 45.
Write down 5 as next digit of the result. 
Result so far: 1390.05
Deduct 255 from 300 and we're left with 45.
Since there are no more digits in the dividend, we add a zero to the remainder making it 450, and continue the process.

Step 8:
When dividing 450 by 51, we get 8 with a remainder of 42.
Use 8 as the next digit of our solution. 
Result so far: 1390.058
If we subtract 408 from 450, we get 42.
Since there are no more digits in the dividend, we add a zero to the remainder making it 420, and continue the process.

Let's proceed to step 9:
The number 51 fits into 420 8 times, leaving a remainder of 12.
Put 8 as the next digit of the answer. 
Result so far: 1390.0588
Subtract 408 from 420 to get 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

The quotient of the division is 1390.0588, and the remainder is 0.00012.