We're dividing 51569713 by 559 
The aim is to understand the frequency of 559 in 51569713.

Let's proceed to step 1:
559 can be fit into 5 0 times, resulting in a remainder of 5.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 5 after subtracting 0 from 5.
Bring next digit (1) of the dividend behind the 5 and repeat the process: 51 / 559

Advancing to step 2:
559 can be fit into 51 0 times, resulting in a remainder of 51.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 51 to get 51.
Take the next digit (5) from the dividend and append it to 51, then repeat: 515 / 559

Going ahead to step 3:
559 goes into 515 0 times with a remainder of 515.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 515 to get 515.
Append the next digit (6) from the dividend to 515 and continue with: 5156 / 559

Moving on to step 4:
The number 559 fits into 5156 9 times, leaving a remainder of 125.
Write down 9 as next digit of the result. 
Result so far: 9.0
The remainder is 125 after subtracting 5031 from 5156.
Grab the next digit (9) from the dividend, add it to 125, then carry on: 1259 / 559

Let's proceed to step 5:
1259 divided by 559 is 2 with a remainder of 141.
The number 2 becomes the next digit in our result. 
Result so far: 92.0
Subtracting 1118 from 1259 leaves us with 141.
Append the next digit (7) from the dividend to 141 and continue with: 1417 / 559

Step 6:
The number 559 fits into 1417 2 times, leaving a remainder of 299.
The number 2 becomes the next digit in our result. 
Result so far: 922.0
If we subtract 1118 from 1417, we get 299.
Grab the next digit (1) from the dividend, add it to 299, then carry on: 2991 / 559

Let's proceed to step 7:
2991 divided by 559 is 5 with a remainder of 196.
The number 5 becomes the next digit in our result. 
Result so far: 9225.0
Subtract 2795 from 2991 to get 196.
Append the next digit (3) from the dividend to 196 and continue with: 1963 / 559

On to step 8:
The number 559 fits into 1963 3 times, leaving a remainder of 286.
The number 3 becomes the next digit in our result. 
Result so far: 92253.0
The remainder is 286 after subtracting 1677 from 1963.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2860, and continue the process.

Advancing to step 9:
If we divide 2860 by 559, we get 5 and a remainder of 65.
Put 5 as the next digit of the answer. 
Result so far: 92253.5
Deduct 2795 from 2860 and we're left with 65.
Since there are no more digits in the dividend, we add a zero to the remainder making it 650, and continue the process.

Step 10:
When dividing 650 by 559, we get 1 with a remainder of 91.
Put 1 as the next digit of the answer. 
Result so far: 92253.51
Deduct 559 from 650 and we're left with 91.
Since there are no more digits in the dividend, we add a zero to the remainder making it 910, and continue the process.

Advancing to step 11:
910 divided by 559 is 1 with a remainder of 351.
Put 1 as the next digit of the answer. 
Result so far: 92253.511
If we take 559 away from 910, we end up with 351.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3510, and continue the process.

After the division, we end up with 92253.511 and a remainder of 0.0351.