62593280 divided by 391 
The aim is to understand the frequency of 391 in 62593280.

Going ahead to step 1:
6 divided by 391 is 0 with a remainder of 6.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 6, we end up with 6.
Include the next digit (2) from the dividend after 6, then repeat: 62 / 391

On to step 2:
62 divided by 391 is 0 with a remainder of 62.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 62, we end up with 62.
Fetch the next digit (5) from the dividend, attach it to 62 and continue: 625 / 391

On to step 3:
When dividing 625 by 391, we get 1 with a remainder of 234.
The next digit of our result is 1. 
Result so far: 1.0
Deduct 391 from 625 and we're left with 234.
Fetch the next digit (9) from the dividend, attach it to 234 and continue: 2349 / 391

Advancing to step 4:
391 goes into 2349 6 times with a remainder of 3.
Put 6 as the next digit of the answer. 
Result so far: 16.0
If we take 2346 away from 2349, we end up with 3.
Fetch the next digit (3) from the dividend, attach it to 3 and continue: 33 / 391

Advancing to step 5:
33 divided by 391 is 0 with a remainder of 33.
The next digit of our result is 0. 
Result so far: 160.0
Subtracting 0 from 33 leaves us with 33.
Append the next digit (2) from the dividend to 33 and continue with: 332 / 391

Advancing to step 6:
If we divide 332 by 391, we get 0 and a remainder of 332.
Put 0 as the next digit of the answer. 
Result so far: 1600.0
Deduct 0 from 332 and we're left with 332.
Fetch the next digit (8) from the dividend, attach it to 332 and continue: 3328 / 391

Advancing to step 7:
391 can be fit into 3328 8 times, resulting in a remainder of 200.
The number 8 becomes the next digit in our result. 
Result so far: 16008.0
If we subtract 3128 from 3328, we get 200.
Include the next digit (0) from the dividend after 200, then repeat: 2000 / 391

Moving on to step 8:
When dividing 2000 by 391, we get 5 with a remainder of 45.
The number 5 becomes the next digit in our result. 
Result so far: 160085.0
If we subtract 1955 from 2000, we get 45.
Since there are no more digits in the dividend, we add a zero to the remainder making it 450, and continue the process.

Advancing to step 9:
391 can be fit into 450 1 times, resulting in a remainder of 59.
Write down 1 as next digit of the result. 
Result so far: 160085.1
If we take 391 away from 450, we end up with 59.
Since there are no more digits in the dividend, we add a zero to the remainder making it 590, and continue the process.

On to step 10:
391 can be fit into 590 1 times, resulting in a remainder of 199.
Record the quotient 1 as the next digit in the result. 
Result so far: 160085.11
Subtracting 391 from 590 leaves us with 199.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1990, and continue the process.

After the division, we end up with 160085.11 and a remainder of 0.199.