Let's divide 33780707 by 525
The aim is to understand the frequency of 525 in 33780707.

Step 1:
When dividing 3 by 525, we get 0 with a remainder of 3.
The next digit of our result is 0. 
Result so far: 0.0
Subtracting 0 from 3 leaves us with 3.
Grab the next digit (3) from the dividend, add it to 3, then carry on: 33 / 525

Going ahead to step 2:
525 can be fit into 33 0 times, resulting in a remainder of 33.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we subtract 0 from 33, we get 33.
Take the next digit (7) from the dividend and append it to 33, then repeat: 337 / 525

Let's proceed to step 3:
If we divide 337 by 525, we get 0 and a remainder of 337.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
The remainder is 337 after subtracting 0 from 337.
Fetch the next digit (8) from the dividend, attach it to 337 and continue: 3378 / 525

On to step 4:
If we divide 3378 by 525, we get 6 and a remainder of 228.
Use 6 as the next digit of our solution. 
Result so far: 6.0
Subtract 3150 from 3378 to get 228.
Fetch the next digit (0) from the dividend, attach it to 228 and continue: 2280 / 525

Step 5:
525 goes into 2280 4 times with a remainder of 180.
Record the quotient 4 as the next digit in the result. 
Result so far: 64.0
Subtract 2100 from 2280 to get 180.
Take the next digit (7) from the dividend and append it to 180, then repeat: 1807 / 525

Let's proceed to step 6:
525 goes into 1807 3 times with a remainder of 232.
Use 3 as the next digit of our solution. 
Result so far: 643.0
Subtracting 1575 from 1807 leaves us with 232.
Bring next digit (0) of the dividend behind the 232 and repeat the process: 2320 / 525

Moving on to step 7:
If we divide 2320 by 525, we get 4 and a remainder of 220.
Write down 4 as next digit of the result. 
Result so far: 6434.0
If we take 2100 away from 2320, we end up with 220.
Take the next digit (7) from the dividend and append it to 220, then repeat: 2207 / 525

Moving on to step 8:
2207 divided by 525 is 4 with a remainder of 107.
Put 4 as the next digit of the answer. 
Result so far: 64344.0
If we take 2100 away from 2207, we end up with 107.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1070, and continue the process.

Moving on to step 9:
1070 divided by 525 is 2 with a remainder of 20.
Put 2 as the next digit of the answer. 
Result so far: 64344.2
Subtracting 1050 from 1070 leaves us with 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

On to step 10:
If we divide 200 by 525, we get 0 and a remainder of 200.
Put 0 as the next digit of the answer. 
Result so far: 64344.2
Deduct 0 from 200 and we're left with 200.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2000, and continue the process.

Moving on to step 11:
The number 525 fits into 2000 3 times, leaving a remainder of 425.
Write down 3 as next digit of the result. 
Result so far: 64344.203
Deduct 1575 from 2000 and we're left with 425.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4250, and continue the process.

Moving on to step 12:
When dividing 4250 by 525, we get 8 with a remainder of 50.
Record the quotient 8 as the next digit in the result. 
Result so far: 64344.2038
If we subtract 4200 from 4250, we get 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

Let's proceed to step 13:
When dividing 500 by 525, we get 0 with a remainder of 500.
Use 0 as the next digit of our solution. 
Result so far: 64344.2038
Subtracting 0 from 500 leaves us with 500.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5000, and continue the process.

Step 14:
5000 divided by 525 is 9 with a remainder of 275.
Put 9 as the next digit of the answer. 
Result so far: 64344.203809
If we subtract 4725 from 5000, we get 275.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2750, and continue the process.

Advancing to step 15:
The number 525 fits into 2750 5 times, leaving a remainder of 125.
Write down 5 as next digit of the result. 
Result so far: 64344.2038095
Deduct 2625 from 2750 and we're left with 125.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1250, and continue the process.

Moving on to step 16:
525 can be fit into 1250 2 times, resulting in a remainder of 200.
Record the quotient 2 as the next digit in the result. 
Result so far: 64344.20380952
Subtract 1050 from 1250 to get 200.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2000, and continue the process.

After the division, we end up with 64344.20380952 and a remainder of 2e-07.