337575 divided by 51 
The aim is to understand the frequency of 51 in 337575.

Going ahead to step 1:
When dividing 3 by 51, we get 0 with a remainder of 3.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 3 and we're left with 3.
Append the next digit (3) from the dividend to 3 and continue with: 33 / 51

Moving on to step 2:
If we divide 33 by 51, we get 0 and a remainder of 33.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 33 to get 33.
Take the next digit (7) from the dividend and append it to 33, then repeat: 337 / 51

Moving on to step 3:
The number 51 fits into 337 6 times, leaving a remainder of 31.
Put 6 as the next digit of the answer. 
Result so far: 6.0
Deduct 306 from 337 and we're left with 31.
Append the next digit (5) from the dividend to 31 and continue with: 315 / 51

Step 4:
315 divided by 51 is 6 with a remainder of 9.
Write down 6 as next digit of the result. 
Result so far: 66.0
The remainder is 9 after subtracting 306 from 315.
Take the next digit (7) from the dividend and append it to 9, then repeat: 97 / 51

Step 5:
If we divide 97 by 51, we get 1 and a remainder of 46.
Record the quotient 1 as the next digit in the result. 
Result so far: 661.0
If we take 51 away from 97, we end up with 46.
Bring next digit (5) of the dividend behind the 46 and repeat the process: 465 / 51

On to step 6:
If we divide 465 by 51, we get 9 and a remainder of 6.
Put 9 as the next digit of the answer. 
Result so far: 6619.0
Subtracting 459 from 465 leaves us with 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

On to step 7:
51 can be fit into 60 1 times, resulting in a remainder of 9.
Use 1 as the next digit of our solution. 
Result so far: 6619.1
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.

Step 8:
51 goes into 90 1 times with a remainder of 39.
Write down 1 as next digit of the result. 
Result so far: 6619.11
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 quotient of the division is 6619.11, and the remainder is 0.039.