We look at the division of 33585360 by 681 
The aim is to understand the frequency of 681 in 33585360.

Advancing to step 1:
The number 681 fits into 3 0 times, leaving a remainder of 3.
Put 0 as the next digit of the answer. 
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 / 681

On to step 2:
681 can be fit into 33 0 times, resulting in a remainder of 33.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 33, we get 33.
Take the next digit (5) from the dividend and append it to 33, then repeat: 335 / 681

On to step 3:
335 divided by 681 is 0 with a remainder of 335.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 335 and we're left with 335.
Take the next digit (8) from the dividend and append it to 335, then repeat: 3358 / 681

On to step 4:
When dividing 3358 by 681, we get 4 with a remainder of 634.
The number 4 becomes the next digit in our result. 
Result so far: 4.0
Deduct 2724 from 3358 and we're left with 634.
Append the next digit (5) from the dividend to 634 and continue with: 6345 / 681

Going ahead to step 5:
6345 divided by 681 is 9 with a remainder of 216.
Put 9 as the next digit of the answer. 
Result so far: 49.0
Deduct 6129 from 6345 and we're left with 216.
Grab the next digit (3) from the dividend, add it to 216, then carry on: 2163 / 681

Step 6:
681 can be fit into 2163 3 times, resulting in a remainder of 120.
The number 3 becomes the next digit in our result. 
Result so far: 493.0
Deduct 2043 from 2163 and we're left with 120.
Bring next digit (6) of the dividend behind the 120 and repeat the process: 1206 / 681

Let's proceed to step 7:
681 goes into 1206 1 times with a remainder of 525.
The number 1 becomes the next digit in our result. 
Result so far: 4931.0
If we take 681 away from 1206, we end up with 525.
Include the next digit (0) from the dividend after 525, then repeat: 5250 / 681

Let's proceed to step 8:
681 goes into 5250 7 times with a remainder of 483.
Record the quotient 7 as the next digit in the result. 
Result so far: 49317.0
Subtract 4767 from 5250 to get 483.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4830, and continue the process.

Step 9:
The number 681 fits into 4830 7 times, leaving a remainder of 63.
Record the quotient 7 as the next digit in the result. 
Result so far: 49317.7
The remainder is 63 after subtracting 4767 from 4830.
Since there are no more digits in the dividend, we add a zero to the remainder making it 630, and continue the process.

Step 10:
681 goes into 630 0 times with a remainder of 630.
The next digit of our result is 0. 
Result so far: 49317.7
Subtracting 0 from 630 leaves us with 630.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6300, and continue the process.

Going ahead to step 11:
681 goes into 6300 9 times with a remainder of 171.
Record the quotient 9 as the next digit in the result. 
Result so far: 49317.709
The remainder is 171 after subtracting 6129 from 6300.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1710, and continue the process.

Going ahead to step 12:
The number 681 fits into 1710 2 times, leaving a remainder of 348.
Use 2 as the next digit of our solution. 
Result so far: 49317.7092
Deduct 1362 from 1710 and we're left with 348.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3480, and continue the process.

Going ahead to step 13:
The number 681 fits into 3480 5 times, leaving a remainder of 75.
Use 5 as the next digit of our solution. 
Result so far: 49317.70925
Deduct 3405 from 3480 and we're left with 75.
Since there are no more digits in the dividend, we add a zero to the remainder making it 750, and continue the process.

On to step 14:
681 can be fit into 750 1 times, resulting in a remainder of 69.
Record the quotient 1 as the next digit in the result. 
Result so far: 49317.709251
If we subtract 681 from 750, we get 69.
Since there are no more digits in the dividend, we add a zero to the remainder making it 690, and continue the process.

On to step 15:
If we divide 690 by 681, we get 1 and a remainder of 9.
Put 1 as the next digit of the answer. 
Result so far: 49317.7092511
Deduct 681 from 690 and we're left 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.

The final outcome is 49317.7092511, with a leftover of 9e-08.