We're dividing 170673 by 51 
The aim is to understand the frequency of 51 in 170673.

Step 1:
51 can be fit into 1 0 times, resulting in a remainder of 1.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 1 and we're left with 1.
Append the next digit (7) from the dividend to 1 and continue with: 17 / 51

On to step 2:
The number 51 fits into 17 0 times, leaving a remainder of 17.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtracting 0 from 17 leaves us with 17.
Bring next digit (0) of the dividend behind the 17 and repeat the process: 170 / 51

On to step 3:
51 goes into 170 3 times with a remainder of 17.
Write down 3 as next digit of the result. 
Result so far: 3.0
The remainder is 17 after subtracting 153 from 170.
Grab the next digit (6) from the dividend, add it to 17, then carry on: 176 / 51

Advancing to step 4:
51 goes into 176 3 times with a remainder of 23.
The number 3 becomes the next digit in our result. 
Result so far: 33.0
Deduct 153 from 176 and we're left with 23.
Take the next digit (7) from the dividend and append it to 23, then repeat: 237 / 51

Step 5:
The number 51 fits into 237 4 times, leaving a remainder of 33.
Use 4 as the next digit of our solution. 
Result so far: 334.0
Subtract 204 from 237 to get 33.
Append the next digit (3) from the dividend to 33 and continue with: 333 / 51

Going ahead to step 6:
51 goes into 333 6 times with a remainder of 27.
The next digit of our result is 6. 
Result so far: 3346.0
Subtracting 306 from 333 leaves us with 27.
Since there are no more digits in the dividend, we add a zero to the remainder making it 270, and continue the process.

Advancing to step 7:
When dividing 270 by 51, we get 5 with a remainder of 15.
Record the quotient 5 as the next digit in the result. 
Result so far: 3346.5
Deduct 255 from 270 and we're left with 15.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

Moving on to step 8:
The number 51 fits into 150 2 times, leaving a remainder of 48.
Record the quotient 2 as the next digit in the result. 
Result so far: 3346.52
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.

Step 9:
51 can be fit into 480 9 times, resulting in a remainder of 21.
The next digit of our result is 9. 
Result so far: 3346.529
Subtract 459 from 480 to get 21.
Since there are no more digits in the dividend, we add a zero to the remainder making it 210, and continue the process.

Let's proceed to step 10:
51 goes into 210 4 times with a remainder of 6.
Use 4 as the next digit of our solution. 
Result so far: 3346.5294
The remainder is 6 after subtracting 204 from 210.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Let's proceed to step 11:
60 divided by 51 is 1 with a remainder of 9.
Put 1 as the next digit of the answer. 
Result so far: 3346.52941
If we take 51 away from 60, we end up with 9.
Since there are no more digits in the dividend, we add a zero to the remainder making it 90, and continue the process.

Going ahead to step 12:
51 goes into 90 1 times with a remainder of 39.
Write down 1 as next digit of the result. 
Result so far: 3346.529411
If we take 51 away from 90, we end up with 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 3346.529411 with a remainder of 3.9e-06.