We divide 48106735 by 621
The aim is to understand the frequency of 621 in 48106735.

On to step 1:
When dividing 4 by 621, we get 0 with a remainder of 4.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 4 after subtracting 0 from 4.
Include the next digit (8) from the dividend after 4, then repeat: 48 / 621

Let's proceed to step 2:
621 can be fit into 48 0 times, resulting in a remainder of 48.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 48 after subtracting 0 from 48.
Take the next digit (1) from the dividend and append it to 48, then repeat: 481 / 621

On to step 3:
If we divide 481 by 621, we get 0 and a remainder of 481.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 481, we get 481.
Include the next digit (0) from the dividend after 481, then repeat: 4810 / 621

Going ahead to step 4:
621 can be fit into 4810 7 times, resulting in a remainder of 463.
The next digit of our result is 7. 
Result so far: 7.0
If we subtract 4347 from 4810, we get 463.
Take the next digit (6) from the dividend and append it to 463, then repeat: 4636 / 621

Moving on to step 5:
The number 621 fits into 4636 7 times, leaving a remainder of 289.
Put 7 as the next digit of the answer. 
Result so far: 77.0
If we subtract 4347 from 4636, we get 289.
Take the next digit (7) from the dividend and append it to 289, then repeat: 2897 / 621

Advancing to step 6:
The number 621 fits into 2897 4 times, leaving a remainder of 413.
Use 4 as the next digit of our solution. 
Result so far: 774.0
The remainder is 413 after subtracting 2484 from 2897.
Bring next digit (3) of the dividend behind the 413 and repeat the process: 4133 / 621

Step 7:
When dividing 4133 by 621, we get 6 with a remainder of 407.
The next digit of our result is 6. 
Result so far: 7746.0
If we take 3726 away from 4133, we end up with 407.
Bring next digit (5) of the dividend behind the 407 and repeat the process: 4075 / 621

Advancing to step 8:
The number 621 fits into 4075 6 times, leaving a remainder of 349.
The number 6 becomes the next digit in our result. 
Result so far: 77466.0
Deduct 3726 from 4075 and we're left with 349.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3490, and continue the process.

Going ahead to step 9:
If we divide 3490 by 621, we get 5 and a remainder of 385.
The number 5 becomes the next digit in our result. 
Result so far: 77466.5
Deduct 3105 from 3490 and we're left with 385.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3850, and continue the process.

On to step 10:
If we divide 3850 by 621, we get 6 and a remainder of 124.
Use 6 as the next digit of our solution. 
Result so far: 77466.56
The remainder is 124 after subtracting 3726 from 3850.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1240, and continue the process.

Advancing to step 11:
621 goes into 1240 1 times with a remainder of 619.
Write down 1 as next digit of the result. 
Result so far: 77466.561
If we subtract 621 from 1240, we get 619.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6190, and continue the process.

Step 12:
The number 621 fits into 6190 9 times, leaving a remainder of 601.
The next digit of our result is 9. 
Result so far: 77466.5619
The remainder is 601 after subtracting 5589 from 6190.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6010, and continue the process.

On to step 13:
621 goes into 6010 9 times with a remainder of 421.
Record the quotient 9 as the next digit in the result. 
Result so far: 77466.56199
If we take 5589 away from 6010, we end up with 421.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4210, and continue the process.

After the division, we end up with 77466.56199 and a remainder of 0.000421.