We look at the division of 6519335 by 371 
The aim is to understand the frequency of 371 in 6519335.

Step 1:
371 can be fit into 6 0 times, resulting in a remainder of 6.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 6, we get 6.
Fetch the next digit (5) from the dividend, attach it to 6 and continue: 65 / 371

Advancing to step 2:
65 divided by 371 is 0 with a remainder of 65.
The next digit of our result is 0. 
Result so far: 0.0
Subtract 0 from 65 to get 65.
Take the next digit (1) from the dividend and append it to 65, then repeat: 651 / 371

Step 3:
371 goes into 651 1 times with a remainder of 280.
Write down 1 as next digit of the result. 
Result so far: 1.0
Deduct 371 from 651 and we're left with 280.
Take the next digit (9) from the dividend and append it to 280, then repeat: 2809 / 371

Moving on to step 4:
371 goes into 2809 7 times with a remainder of 212.
Use 7 as the next digit of our solution. 
Result so far: 17.0
Subtract 2597 from 2809 to get 212.
Append the next digit (3) from the dividend to 212 and continue with: 2123 / 371

Going ahead to step 5:
371 goes into 2123 5 times with a remainder of 268.
Write down 5 as next digit of the result. 
Result so far: 175.0
Subtract 1855 from 2123 to get 268.
Grab the next digit (3) from the dividend, add it to 268, then carry on: 2683 / 371

Going ahead to step 6:
If we divide 2683 by 371, we get 7 and a remainder of 86.
The next digit of our result is 7. 
Result so far: 1757.0
Deduct 2597 from 2683 and we're left with 86.
Append the next digit (5) from the dividend to 86 and continue with: 865 / 371

On to step 7:
If we divide 865 by 371, we get 2 and a remainder of 123.
The number 2 becomes the next digit in our result. 
Result so far: 17572.0
The remainder is 123 after subtracting 742 from 865.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1230, and continue the process.

Advancing to step 8:
371 goes into 1230 3 times with a remainder of 117.
Use 3 as the next digit of our solution. 
Result so far: 17572.3
Deduct 1113 from 1230 and we're left with 117.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1170, and continue the process.

Going ahead to step 9:
The number 371 fits into 1170 3 times, leaving a remainder of 57.
The number 3 becomes the next digit in our result. 
Result so far: 17572.33
Subtract 1113 from 1170 to 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.

Our division results in 17572.33 with a remaining 0.057.