We divide 661577 by 52
The aim is to understand the frequency of 52 in 661577.

Step 1:
If we divide 6 by 52, we get 0 and a remainder of 6.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 6 and we're left with 6.
Bring next digit (6) of the dividend behind the 6 and repeat the process: 66 / 52

Moving on to step 2:
52 can be fit into 66 1 times, resulting in a remainder of 14.
Use 1 as the next digit of our solution. 
Result so far: 1.0
If we take 52 away from 66, we end up with 14.
Append the next digit (1) from the dividend to 14 and continue with: 141 / 52

Going ahead to step 3:
If we divide 141 by 52, we get 2 and a remainder of 37.
Record the quotient 2 as the next digit in the result. 
Result so far: 12.0
Deduct 104 from 141 and we're left with 37.
Take the next digit (5) from the dividend and append it to 37, then repeat: 375 / 52

Moving on to step 4:
52 goes into 375 7 times with a remainder of 11.
Put 7 as the next digit of the answer. 
Result so far: 127.0
Subtract 364 from 375 to get 11.
Fetch the next digit (7) from the dividend, attach it to 11 and continue: 117 / 52

On to step 5:
52 goes into 117 2 times with a remainder of 13.
Put 2 as the next digit of the answer. 
Result so far: 1272.0
Deduct 104 from 117 and we're left with 13.
Take the next digit (7) from the dividend and append it to 13, then repeat: 137 / 52

Moving on to step 6:
52 goes into 137 2 times with a remainder of 33.
The next digit of our result is 2. 
Result so far: 12722.0
Deduct 104 from 137 and we're left with 33.
Since there are no more digits in the dividend, we add a zero to the remainder making it 330, and continue the process.

Advancing to step 7:
52 goes into 330 6 times with a remainder of 18.
Write down 6 as next digit of the result. 
Result so far: 12722.6
Subtract 312 from 330 to get 18.
Since there are no more digits in the dividend, we add a zero to the remainder making it 180, and continue the process.

On to step 8:
52 goes into 180 3 times with a remainder of 24.
Write down 3 as next digit of the result. 
Result so far: 12722.63
If we take 156 away from 180, we end up with 24.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

Advancing to step 9:
When dividing 240 by 52, we get 4 with a remainder of 32.
Use 4 as the next digit of our solution. 
Result so far: 12722.634
Deduct 208 from 240 and we're left with 32.
Since there are no more digits in the dividend, we add a zero to the remainder making it 320, and continue the process.

Moving on to step 10:
52 can be fit into 320 6 times, resulting in a remainder of 8.
Use 6 as the next digit of our solution. 
Result so far: 12722.6346
The remainder is 8 after subtracting 312 from 320.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Let's proceed to step 11:
52 goes into 80 1 times with a remainder of 28.
Record the quotient 1 as the next digit in the result. 
Result so far: 12722.63461
Deduct 52 from 80 and we're left with 28.
Since there are no more digits in the dividend, we add a zero to the remainder making it 280, and continue the process.

Moving on to step 12:
280 divided by 52 is 5 with a remainder of 20.
The next digit of our result is 5. 
Result so far: 12722.634615
Subtract 260 from 280 to get 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Moving on to step 13:
The number 52 fits into 200 3 times, leaving a remainder of 44.
Put 3 as the next digit of the answer. 
Result so far: 12722.6346153
Subtracting 156 from 200 leaves us with 44.
Since there are no more digits in the dividend, we add a zero to the remainder making it 440, and continue the process.

On to step 14:
If we divide 440 by 52, we get 8 and a remainder of 24.
Record the quotient 8 as the next digit in the result. 
Result so far: 12722.63461538
Subtracting 416 from 440 leaves us with 24.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

The final outcome is 12722.63461538, with a leftover of 2.4e-08.