17012920 ÷ 735 
The aim is to understand the frequency of 735 in 17012920.

Going ahead to step 1:
If we divide 1 by 735, we get 0 and 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.
Take the next digit (7) from the dividend and append it to 1, then repeat: 17 / 735

Step 2:
17 divided by 735 is 0 with a remainder of 17.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 17 leaves us with 17.
Take the next digit (0) from the dividend and append it to 17, then repeat: 170 / 735

Moving on to step 3:
170 divided by 735 is 0 with a remainder of 170.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 170, we get 170.
Take the next digit (1) from the dividend and append it to 170, then repeat: 1701 / 735

Step 4:
If we divide 1701 by 735, we get 2 and a remainder of 231.
Put 2 as the next digit of the answer. 
Result so far: 2.0
Subtract 1470 from 1701 to get 231.
Grab the next digit (2) from the dividend, add it to 231, then carry on: 2312 / 735

On to step 5:
735 goes into 2312 3 times with a remainder of 107.
Put 3 as the next digit of the answer. 
Result so far: 23.0
The remainder is 107 after subtracting 2205 from 2312.
Grab the next digit (9) from the dividend, add it to 107, then carry on: 1079 / 735

Step 6:
The number 735 fits into 1079 1 times, leaving a remainder of 344.
The number 1 becomes the next digit in our result. 
Result so far: 231.0
The remainder is 344 after subtracting 735 from 1079.
Bring next digit (2) of the dividend behind the 344 and repeat the process: 3442 / 735

On to step 7:
When dividing 3442 by 735, we get 4 with a remainder of 502.
The number 4 becomes the next digit in our result. 
Result so far: 2314.0
If we subtract 2940 from 3442, we get 502.
Append the next digit (0) from the dividend to 502 and continue with: 5020 / 735

Advancing to step 8:
The number 735 fits into 5020 6 times, leaving a remainder of 610.
The number 6 becomes the next digit in our result. 
Result so far: 23146.0
Subtract 4410 from 5020 to get 610.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6100, and continue the process.

Moving on to step 9:
735 can be fit into 6100 8 times, resulting in a remainder of 220.
Put 8 as the next digit of the answer. 
Result so far: 23146.8
Deduct 5880 from 6100 and we're left with 220.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2200, and continue the process.

Moving on to step 10:
If we divide 2200 by 735, we get 2 and a remainder of 730.
The next digit of our result is 2. 
Result so far: 23146.82
The remainder is 730 after subtracting 1470 from 2200.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7300, and continue the process.

Advancing to step 11:
The number 735 fits into 7300 9 times, leaving a remainder of 685.
The number 9 becomes the next digit in our result. 
Result so far: 23146.829
Subtract 6615 from 7300 to get 685.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6850, and continue the process.

Advancing to step 12:
The number 735 fits into 6850 9 times, leaving a remainder of 235.
Write down 9 as next digit of the result. 
Result so far: 23146.8299
Subtract 6615 from 6850 to get 235.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2350, and continue the process.

After the division, we end up with 23146.8299 and a remainder of 0.00235.