121646 ÷ 35 
The aim is to understand the frequency of 35 in 121646.

Step 1:
The number 35 fits into 1 0 times, leaving a remainder of 1.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 1 and we're left with 1.
Append the next digit (2) from the dividend to 1 and continue with: 12 / 35

Going ahead to step 2:
If we divide 12 by 35, we get 0 and a remainder of 12.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 12, we get 12.
Fetch the next digit (1) from the dividend, attach it to 12 and continue: 121 / 35

Step 3:
When dividing 121 by 35, we get 3 with a remainder of 16.
Record the quotient 3 as the next digit in the result. 
Result so far: 3.0
Deduct 105 from 121 and we're left with 16.
Bring next digit (6) of the dividend behind the 16 and repeat the process: 166 / 35

Moving on to step 4:
If we divide 166 by 35, we get 4 and a remainder of 26.
Write down 4 as next digit of the result. 
Result so far: 34.0
Subtracting 140 from 166 leaves us with 26.
Include the next digit (4) from the dividend after 26, then repeat: 264 / 35

Step 5:
35 can be fit into 264 7 times, resulting in a remainder of 19.
Put 7 as the next digit of the answer. 
Result so far: 347.0
Subtract 245 from 264 to get 19.
Bring next digit (6) of the dividend behind the 19 and repeat the process: 196 / 35

Step 6:
196 divided by 35 is 5 with a remainder of 21.
The number 5 becomes the next digit in our result. 
Result so far: 3475.0
If we take 175 away from 196, we end up with 21.
Since there are no more digits in the dividend, we add a zero to the remainder making it 210, and continue the process.

On to step 7:
35 can be fit into 210 6 times, resulting in a remainder of 0.
The next digit of our result is 6. 
Result so far: 3475.6
Subtract 210 from 210 to get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Advancing to step 8:
The number 35 fits into 0 0 times, leaving a remainder of 0.
Use 0 as the next digit of our solution. 
Result so far: 3475.6
Deduct 0 from 0 and we're left with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

On to step 9:
35 goes into 0 0 times with a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 3475.6
Subtracting 0 from 0 leaves us with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Our division results in 3475.6 with a remaining 0.0.