71400302 divided by 371 
The aim is to understand the frequency of 371 in 71400302.

On to step 1:
When dividing 7 by 371, we get 0 with a remainder of 7.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 7 and we're left with 7.
Take the next digit (1) from the dividend and append it to 7, then repeat: 71 / 371

Moving on to step 2:
71 divided by 371 is 0 with a remainder of 71.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 71 and we're left with 71.
Bring next digit (4) of the dividend behind the 71 and repeat the process: 714 / 371

Let's proceed to step 3:
371 goes into 714 1 times with a remainder of 343.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
The remainder is 343 after subtracting 371 from 714.
Include the next digit (0) from the dividend after 343, then repeat: 3430 / 371

Going ahead to step 4:
When dividing 3430 by 371, we get 9 with a remainder of 91.
The next digit of our result is 9. 
Result so far: 19.0
Subtract 3339 from 3430 to get 91.
Fetch the next digit (0) from the dividend, attach it to 91 and continue: 910 / 371

Going ahead to step 5:
371 goes into 910 2 times with a remainder of 168.
Record the quotient 2 as the next digit in the result. 
Result so far: 192.0
Deduct 742 from 910 and we're left with 168.
Take the next digit (3) from the dividend and append it to 168, then repeat: 1683 / 371

Step 6:
The number 371 fits into 1683 4 times, leaving a remainder of 199.
Write down 4 as next digit of the result. 
Result so far: 1924.0
If we take 1484 away from 1683, we end up with 199.
Fetch the next digit (0) from the dividend, attach it to 199 and continue: 1990 / 371

Going ahead to step 7:
If we divide 1990 by 371, we get 5 and a remainder of 135.
The number 5 becomes the next digit in our result. 
Result so far: 19245.0
If we take 1855 away from 1990, we end up with 135.
Append the next digit (2) from the dividend to 135 and continue with: 1352 / 371

Advancing to step 8:
If we divide 1352 by 371, we get 3 and a remainder of 239.
Write down 3 as next digit of the result. 
Result so far: 192453.0
Deduct 1113 from 1352 and we're left with 239.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2390, and continue the process.

On to step 9:
2390 divided by 371 is 6 with a remainder of 164.
Record the quotient 6 as the next digit in the result. 
Result so far: 192453.6
Subtracting 2226 from 2390 leaves us with 164.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1640, and continue the process.

Moving on to step 10:
1640 divided by 371 is 4 with a remainder of 156.
The next digit of our result is 4. 
Result so far: 192453.64
Deduct 1484 from 1640 and we're left with 156.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1560, and continue the process.

Going ahead to step 11:
1560 divided by 371 is 4 with a remainder of 76.
Put 4 as the next digit of the answer. 
Result so far: 192453.644
Subtracting 1484 from 1560 leaves us with 76.
Since there are no more digits in the dividend, we add a zero to the remainder making it 760, and continue the process.

The final outcome is 192453.644, with a leftover of 0.0076.