We're dividing 8354808 by 620 
The aim is to understand the frequency of 620 in 8354808.

Moving on to step 1:
When dividing 8 by 620, we get 0 with a remainder of 8.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 8 leaves us with 8.
Take the next digit (3) from the dividend and append it to 8, then repeat: 83 / 620

Advancing to step 2:
If we divide 83 by 620, we get 0 and a remainder of 83.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtracting 0 from 83 leaves us with 83.
Append the next digit (5) from the dividend to 83 and continue with: 835 / 620

On to step 3:
If we divide 835 by 620, we get 1 and a remainder of 215.
Write down 1 as next digit of the result. 
Result so far: 1.0
If we subtract 620 from 835, we get 215.
Bring next digit (4) of the dividend behind the 215 and repeat the process: 2154 / 620

On to step 4:
The number 620 fits into 2154 3 times, leaving a remainder of 294.
The number 3 becomes the next digit in our result. 
Result so far: 13.0
Deduct 1860 from 2154 and we're left with 294.
Bring next digit (8) of the dividend behind the 294 and repeat the process: 2948 / 620

Going ahead to step 5:
2948 divided by 620 is 4 with a remainder of 468.
The number 4 becomes the next digit in our result. 
Result so far: 134.0
Subtracting 2480 from 2948 leaves us with 468.
Append the next digit (0) from the dividend to 468 and continue with: 4680 / 620

Advancing to step 6:
4680 divided by 620 is 7 with a remainder of 340.
Record the quotient 7 as the next digit in the result. 
Result so far: 1347.0
Subtract 4340 from 4680 to get 340.
Include the next digit (8) from the dividend after 340, then repeat: 3408 / 620

Step 7:
620 goes into 3408 5 times with a remainder of 308.
The next digit of our result is 5. 
Result so far: 13475.0
Subtracting 3100 from 3408 leaves us with 308.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3080, and continue the process.

Step 8:
If we divide 3080 by 620, we get 4 and a remainder of 600.
Record the quotient 4 as the next digit in the result. 
Result so far: 13475.4
Subtracting 2480 from 3080 leaves us with 600.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6000, and continue the process.

Going ahead to step 9:
When dividing 6000 by 620, we get 9 with a remainder of 420.
Put 9 as the next digit of the answer. 
Result so far: 13475.49
If we subtract 5580 from 6000, we get 420.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4200, and continue the process.

Moving on to step 10:
When dividing 4200 by 620, we get 6 with a remainder of 480.
Write down 6 as next digit of the result. 
Result so far: 13475.496
If we take 3720 away from 4200, we end up with 480.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4800, and continue the process.

Advancing to step 11:
620 goes into 4800 7 times with a remainder of 460.
Write down 7 as next digit of the result. 
Result so far: 13475.4967
If we take 4340 away from 4800, we end up with 460.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4600, and continue the process.

Going ahead to step 12:
620 goes into 4600 7 times with a remainder of 260.
The number 7 becomes the next digit in our result. 
Result so far: 13475.49677
If we take 4340 away from 4600, we end up with 260.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2600, and continue the process.

After the division, we end up with 13475.49677 and a remainder of 0.00026.