802963 ÷ 71 
The aim is to understand the frequency of 71 in 802963.

On to step 1:
If we divide 8 by 71, we get 0 and a remainder of 8.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 8 to get 8.
Grab the next digit (0) from the dividend, add it to 8, then carry on: 80 / 71

Going ahead to step 2:
80 divided by 71 is 1 with a remainder of 9.
Put 1 as the next digit of the answer. 
Result so far: 1.0
Subtract 71 from 80 to get 9.
Include the next digit (2) from the dividend after 9, then repeat: 92 / 71

Advancing to step 3:
71 goes into 92 1 times with a remainder of 21.
Write down 1 as next digit of the result. 
Result so far: 11.0
If we take 71 away from 92, we end up with 21.
Bring next digit (9) of the dividend behind the 21 and repeat the process: 219 / 71

Advancing to step 4:
219 divided by 71 is 3 with a remainder of 6.
The number 3 becomes the next digit in our result. 
Result so far: 113.0
The remainder is 6 after subtracting 213 from 219.
Take the next digit (6) from the dividend and append it to 6, then repeat: 66 / 71

Going ahead to step 5:
71 can be fit into 66 0 times, resulting in a remainder of 66.
Record the quotient 0 as the next digit in the result. 
Result so far: 1130.0
If we subtract 0 from 66, we get 66.
Grab the next digit (3) from the dividend, add it to 66, then carry on: 663 / 71

On to step 6:
663 divided by 71 is 9 with a remainder of 24.
The next digit of our result is 9. 
Result so far: 11309.0
Deduct 639 from 663 and we're left with 24.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

Step 7:
The number 71 fits into 240 3 times, leaving a remainder of 27.
Use 3 as the next digit of our solution. 
Result so far: 11309.3
Subtracting 213 from 240 leaves us with 27.
Since there are no more digits in the dividend, we add a zero to the remainder making it 270, and continue the process.

On to step 8:
270 divided by 71 is 3 with a remainder of 57.
Write down 3 as next digit of the result. 
Result so far: 11309.33
If we subtract 213 from 270, we get 57.
Since there are no more digits in the dividend, we add a zero to the remainder making it 570, and continue the process.

The quotient of the division is 11309.33, and the remainder is 0.057.