603880 ÷ 71 
The aim is to understand the frequency of 71 in 603880.

Going ahead to step 1:
When dividing 6 by 71, we get 0 with a remainder of 6.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 6, we get 6.
Grab the next digit (0) from the dividend, add it to 6, then carry on: 60 / 71

Moving on to step 2:
71 can be fit into 60 0 times, resulting in a remainder of 60.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 60, we get 60.
Append the next digit (3) from the dividend to 60 and continue with: 603 / 71

Step 3:
71 goes into 603 8 times with a remainder of 35.
The next digit of our result is 8. 
Result so far: 8.0
If we take 568 away from 603, we end up with 35.
Grab the next digit (8) from the dividend, add it to 35, then carry on: 358 / 71

Moving on to step 4:
The number 71 fits into 358 5 times, leaving a remainder of 3.
Put 5 as the next digit of the answer. 
Result so far: 85.0
If we subtract 355 from 358, we get 3.
Bring next digit (8) of the dividend behind the 3 and repeat the process: 38 / 71

On to step 5:
When dividing 38 by 71, we get 0 with a remainder of 38.
Write down 0 as next digit of the result. 
Result so far: 850.0
Subtract 0 from 38 to get 38.
Append the next digit (0) from the dividend to 38 and continue with: 380 / 71

Let's proceed to step 6:
The number 71 fits into 380 5 times, leaving a remainder of 25.
Write down 5 as next digit of the result. 
Result so far: 8505.0
Subtracting 355 from 380 leaves us with 25.
Since there are no more digits in the dividend, we add a zero to the remainder making it 250, and continue the process.

Let's proceed to step 7:
71 can be fit into 250 3 times, resulting in a remainder of 37.
The next digit of our result is 3. 
Result so far: 8505.3
If we subtract 213 from 250, we get 37.
Since there are no more digits in the dividend, we add a zero to the remainder making it 370, and continue the process.

Moving on to step 8:
71 goes into 370 5 times with a remainder of 15.
Write down 5 as next digit of the result. 
Result so far: 8505.35
The remainder is 15 after subtracting 355 from 370.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

Step 9:
150 divided by 71 is 2 with a remainder of 8.
The number 2 becomes the next digit in our result. 
Result so far: 8505.352
Subtracting 142 from 150 leaves us with 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

On to step 10:
When dividing 80 by 71, we get 1 with a remainder of 9.
Put 1 as the next digit of the answer. 
Result so far: 8505.3521
Deduct 71 from 80 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.

Advancing to step 11:
If we divide 90 by 71, we get 1 and a remainder of 19.
Put 1 as the next digit of the answer. 
Result so far: 8505.35211
Deduct 71 from 90 and we're left with 19.
Since there are no more digits in the dividend, we add a zero to the remainder making it 190, and continue the process.

The final result is 8505.35211 with a remainder of 1.9e-05.