We divide 33709884 by 870
The aim is to understand the frequency of 870 in 33709884.

Going ahead to step 1:
The number 870 fits into 3 0 times, leaving a remainder of 3.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
The remainder is 3 after subtracting 0 from 3.
Append the next digit (3) from the dividend to 3 and continue with: 33 / 870

Moving on to step 2:
870 goes into 33 0 times with 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.
Grab the next digit (7) from the dividend, add it to 33, then carry on: 337 / 870

Going ahead to step 3:
The number 870 fits into 337 0 times, leaving a remainder of 337.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 337 to get 337.
Include the next digit (0) from the dividend after 337, then repeat: 3370 / 870

Let's proceed to step 4:
3370 divided by 870 is 3 with a remainder of 760.
The next digit of our result is 3. 
Result so far: 3.0
Deduct 2610 from 3370 and we're left with 760.
Take the next digit (9) from the dividend and append it to 760, then repeat: 7609 / 870

Moving on to step 5:
The number 870 fits into 7609 8 times, leaving a remainder of 649.
The number 8 becomes the next digit in our result. 
Result so far: 38.0
Subtract 6960 from 7609 to get 649.
Include the next digit (8) from the dividend after 649, then repeat: 6498 / 870

Step 6:
When dividing 6498 by 870, we get 7 with a remainder of 408.
Use 7 as the next digit of our solution. 
Result so far: 387.0
Deduct 6090 from 6498 and we're left with 408.
Grab the next digit (8) from the dividend, add it to 408, then carry on: 4088 / 870

Moving on to step 7:
The number 870 fits into 4088 4 times, leaving a remainder of 608.
Put 4 as the next digit of the answer. 
Result so far: 3874.0
If we take 3480 away from 4088, we end up with 608.
Include the next digit (4) from the dividend after 608, then repeat: 6084 / 870

Moving on to step 8:
If we divide 6084 by 870, we get 6 and a remainder of 864.
Write down 6 as next digit of the result. 
Result so far: 38746.0
Subtract 5220 from 6084 to get 864.
Since there are no more digits in the dividend, we add a zero to the remainder making it 8640, and continue the process.

Step 9:
The number 870 fits into 8640 9 times, leaving a remainder of 810.
Use 9 as the next digit of our solution. 
Result so far: 38746.9
Deduct 7830 from 8640 and we're left with 810.
Since there are no more digits in the dividend, we add a zero to the remainder making it 8100, and continue the process.

Let's proceed to step 10:
870 can be fit into 8100 9 times, resulting in a remainder of 270.
Put 9 as the next digit of the answer. 
Result so far: 38746.99
Subtract 7830 from 8100 to get 270.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2700, and continue the process.

The final result is 38746.99 with a remainder of 0.27.