We divide 76233639 by 621
The aim is to understand the frequency of 621 in 76233639.

Step 1:
If we divide 7 by 621, we get 0 and a remainder of 7.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 7 and we're left with 7.
Bring next digit (6) of the dividend behind the 7 and repeat the process: 76 / 621

Let's proceed to step 2:
If we divide 76 by 621, we get 0 and a remainder of 76.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 76, we get 76.
Bring next digit (2) of the dividend behind the 76 and repeat the process: 762 / 621

Going ahead to step 3:
621 can be fit into 762 1 times, resulting in a remainder of 141.
Write down 1 as next digit of the result. 
Result so far: 1.0
Subtract 621 from 762 to get 141.
Fetch the next digit (3) from the dividend, attach it to 141 and continue: 1413 / 621

On to step 4:
The number 621 fits into 1413 2 times, leaving a remainder of 171.
Use 2 as the next digit of our solution. 
Result so far: 12.0
Subtracting 1242 from 1413 leaves us with 171.
Take the next digit (3) from the dividend and append it to 171, then repeat: 1713 / 621

Moving on to step 5:
If we divide 1713 by 621, we get 2 and a remainder of 471.
Put 2 as the next digit of the answer. 
Result so far: 122.0
Subtracting 1242 from 1713 leaves us with 471.
Fetch the next digit (6) from the dividend, attach it to 471 and continue: 4716 / 621

Step 6:
If we divide 4716 by 621, we get 7 and a remainder of 369.
The number 7 becomes the next digit in our result. 
Result so far: 1227.0
Subtracting 4347 from 4716 leaves us with 369.
Take the next digit (3) from the dividend and append it to 369, then repeat: 3693 / 621

On to step 7:
The number 621 fits into 3693 5 times, leaving a remainder of 588.
The number 5 becomes the next digit in our result. 
Result so far: 12275.0
If we subtract 3105 from 3693, we get 588.
Fetch the next digit (9) from the dividend, attach it to 588 and continue: 5889 / 621

Advancing to step 8:
The number 621 fits into 5889 9 times, leaving a remainder of 300.
Use 9 as the next digit of our solution. 
Result so far: 122759.0
The remainder is 300 after subtracting 5589 from 5889.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3000, and continue the process.

Advancing to step 9:
621 can be fit into 3000 4 times, resulting in a remainder of 516.
The number 4 becomes the next digit in our result. 
Result so far: 122759.4
If we subtract 2484 from 3000, we get 516.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5160, and continue the process.

Going ahead to step 10:
The number 621 fits into 5160 8 times, leaving a remainder of 192.
Use 8 as the next digit of our solution. 
Result so far: 122759.48
The remainder is 192 after subtracting 4968 from 5160.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1920, and continue the process.

Moving on to step 11:
If we divide 1920 by 621, we get 3 and a remainder of 57.
Put 3 as the next digit of the answer. 
Result so far: 122759.483
If we take 1863 away from 1920, we end up with 57.
Since there are no more digits in the dividend, we add a zero to the remainder making it 570, and continue the process.

Let's proceed to step 12:
When dividing 570 by 621, we get 0 with a remainder of 570.
The next digit of our result is 0. 
Result so far: 122759.483
If we subtract 0 from 570, we get 570.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5700, and continue the process.

Advancing to step 13:
If we divide 5700 by 621, we get 9 and a remainder of 111.
Use 9 as the next digit of our solution. 
Result so far: 122759.48309
Subtracting 5589 from 5700 leaves us with 111.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1110, and continue the process.

Let's proceed to step 14:
When dividing 1110 by 621, we get 1 with a remainder of 489.
Write down 1 as next digit of the result. 
Result so far: 122759.483091
Subtracting 621 from 1110 leaves us with 489.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4890, and continue the process.

Moving on to step 15:
When dividing 4890 by 621, we get 7 with a remainder of 543.
The next digit of our result is 7. 
Result so far: 122759.4830917
The remainder is 543 after subtracting 4347 from 4890.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5430, and continue the process.

Let's proceed to step 16:
621 can be fit into 5430 8 times, resulting in a remainder of 462.
The number 8 becomes the next digit in our result. 
Result so far: 122759.48309178
Deduct 4968 from 5430 and we're left with 462.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4620, and continue the process.

The final result is 122759.48309178 with a remainder of 4.62e-07.