We divide 21751652 by 620
The aim is to understand the frequency of 620 in 21751652.

On to step 1:
When dividing 2 by 620, we get 0 with a remainder of 2.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 2, we get 2.
Fetch the next digit (1) from the dividend, attach it to 2 and continue: 21 / 620

Let's proceed to step 2:
620 goes into 21 0 times with a remainder of 21.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 21 after subtracting 0 from 21.
Append the next digit (7) from the dividend to 21 and continue with: 217 / 620

Moving on to step 3:
When dividing 217 by 620, we get 0 with a remainder of 217.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 217 after subtracting 0 from 217.
Grab the next digit (5) from the dividend, add it to 217, then carry on: 2175 / 620

On to step 4:
620 can be fit into 2175 3 times, resulting in a remainder of 315.
Put 3 as the next digit of the answer. 
Result so far: 3.0
Subtract 1860 from 2175 to get 315.
Bring next digit (1) of the dividend behind the 315 and repeat the process: 3151 / 620

Going ahead to step 5:
If we divide 3151 by 620, we get 5 and a remainder of 51.
The number 5 becomes the next digit in our result. 
Result so far: 35.0
Subtracting 3100 from 3151 leaves us with 51.
Include the next digit (6) from the dividend after 51, then repeat: 516 / 620

On to step 6:
The number 620 fits into 516 0 times, leaving a remainder of 516.
The number 0 becomes the next digit in our result. 
Result so far: 350.0
If we subtract 0 from 516, we get 516.
Grab the next digit (5) from the dividend, add it to 516, then carry on: 5165 / 620

Step 7:
The number 620 fits into 5165 8 times, leaving a remainder of 205.
The next digit of our result is 8. 
Result so far: 3508.0
Subtracting 4960 from 5165 leaves us with 205.
Include the next digit (2) from the dividend after 205, then repeat: 2052 / 620

Step 8:
620 can be fit into 2052 3 times, resulting in a remainder of 192.
Write down 3 as next digit of the result. 
Result so far: 35083.0
Subtract 1860 from 2052 to get 192.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1920, and continue the process.

Advancing to step 9:
620 can be fit into 1920 3 times, resulting in a remainder of 60.
The number 3 becomes the next digit in our result. 
Result so far: 35083.3
If we take 1860 away from 1920, we end up with 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

Let's proceed to step 10:
600 divided by 620 is 0 with a remainder of 600.
Record the quotient 0 as the next digit in the result. 
Result so far: 35083.3
Deduct 0 from 600 and we're left 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.

On to step 11:
6000 divided by 620 is 9 with a remainder of 420.
Put 9 as the next digit of the answer. 
Result so far: 35083.309
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.

Let's proceed to step 12:
4200 divided by 620 is 6 with a remainder of 480.
Use 6 as the next digit of our solution. 
Result so far: 35083.3096
Subtracting 3720 from 4200 leaves us 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.

Let's proceed to step 13:
4800 divided by 620 is 7 with a remainder of 460.
The next digit of our result is 7. 
Result so far: 35083.30967
If we subtract 4340 from 4800, we get 460.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4600, and continue the process.

Moving on to step 14:
If we divide 4600 by 620, we get 7 and a remainder of 260.
Use 7 as the next digit of our solution. 
Result so far: 35083.309677
Subtract 4340 from 4600 to get 260.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2600, and continue the process.

The final result is 35083.309677 with a remainder of 2.6e-05.