We're dividing 363553 by 71 
The aim is to understand the frequency of 71 in 363553.

On to step 1:
3 divided by 71 is 0 with a remainder of 3.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 3 after subtracting 0 from 3.
Fetch the next digit (6) from the dividend, attach it to 3 and continue: 36 / 71

Step 2:
When dividing 36 by 71, we get 0 with a remainder of 36.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 36 after subtracting 0 from 36.
Grab the next digit (3) from the dividend, add it to 36, then carry on: 363 / 71

On to step 3:
71 can be fit into 363 5 times, resulting in a remainder of 8.
The next digit of our result is 5. 
Result so far: 5.0
Deduct 355 from 363 and we're left with 8.
Include the next digit (5) from the dividend after 8, then repeat: 85 / 71

Let's proceed to step 4:
The number 71 fits into 85 1 times, leaving a remainder of 14.
The next digit of our result is 1. 
Result so far: 51.0
If we take 71 away from 85, we end up with 14.
Include the next digit (5) from the dividend after 14, then repeat: 145 / 71

Advancing to step 5:
71 can be fit into 145 2 times, resulting in a remainder of 3.
The next digit of our result is 2. 
Result so far: 512.0
The remainder is 3 after subtracting 142 from 145.
Append the next digit (3) from the dividend to 3 and continue with: 33 / 71

Moving on to step 6:
33 divided by 71 is 0 with a remainder of 33.
The number 0 becomes the next digit in our result. 
Result so far: 5120.0
The remainder is 33 after subtracting 0 from 33.
Since there are no more digits in the dividend, we add a zero to the remainder making it 330, and continue the process.

Advancing to step 7:
71 can be fit into 330 4 times, resulting in a remainder of 46.
The number 4 becomes the next digit in our result. 
Result so far: 5120.4
The remainder is 46 after subtracting 284 from 330.
Since there are no more digits in the dividend, we add a zero to the remainder making it 460, and continue the process.

Advancing to step 8:
460 divided by 71 is 6 with a remainder of 34.
The next digit of our result is 6. 
Result so far: 5120.46
If we subtract 426 from 460, we get 34.
Since there are no more digits in the dividend, we add a zero to the remainder making it 340, and continue the process.

Moving on to step 9:
The number 71 fits into 340 4 times, leaving a remainder of 56.
The next digit of our result is 4. 
Result so far: 5120.464
If we subtract 284 from 340, we get 56.
Since there are no more digits in the dividend, we add a zero to the remainder making it 560, and continue the process.

Advancing to step 10:
The number 71 fits into 560 7 times, leaving a remainder of 63.
Record the quotient 7 as the next digit in the result. 
Result so far: 5120.4647
Subtracting 497 from 560 leaves us with 63.
Since there are no more digits in the dividend, we add a zero to the remainder making it 630, and continue the process.

On to step 11:
If we divide 630 by 71, we get 8 and a remainder of 62.
Record the quotient 8 as the next digit in the result. 
Result so far: 5120.46478
If we subtract 568 from 630, we get 62.
Since there are no more digits in the dividend, we add a zero to the remainder making it 620, and continue the process.

Let's proceed to step 12:
When dividing 620 by 71, we get 8 with a remainder of 52.
Use 8 as the next digit of our solution. 
Result so far: 5120.464788
Subtracting 568 from 620 leaves us with 52.
Since there are no more digits in the dividend, we add a zero to the remainder making it 520, and continue the process.

After the division, we end up with 5120.464788 and a remainder of 5.2e-06.