74620128 divided by 641 
The aim is to understand the frequency of 641 in 74620128.

Let's proceed to step 1:
If we divide 7 by 641, we get 0 and a remainder of 7.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 7, we get 7.
Fetch the next digit (4) from the dividend, attach it to 7 and continue: 74 / 641

Step 2:
74 divided by 641 is 0 with a remainder of 74.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 74, we get 74.
Take the next digit (6) from the dividend and append it to 74, then repeat: 746 / 641

Moving on to step 3:
When dividing 746 by 641, we get 1 with a remainder of 105.
The next digit of our result is 1. 
Result so far: 1.0
Deduct 641 from 746 and we're left with 105.
Bring next digit (2) of the dividend behind the 105 and repeat the process: 1052 / 641

Let's proceed to step 4:
641 can be fit into 1052 1 times, resulting in a remainder of 411.
Write down 1 as next digit of the result. 
Result so far: 11.0
Subtracting 641 from 1052 leaves us with 411.
Append the next digit (0) from the dividend to 411 and continue with: 4110 / 641

Let's proceed to step 5:
If we divide 4110 by 641, we get 6 and a remainder of 264.
Write down 6 as next digit of the result. 
Result so far: 116.0
If we subtract 3846 from 4110, we get 264.
Fetch the next digit (1) from the dividend, attach it to 264 and continue: 2641 / 641

On to step 6:
2641 divided by 641 is 4 with a remainder of 77.
The number 4 becomes the next digit in our result. 
Result so far: 1164.0
Subtract 2564 from 2641 to get 77.
Append the next digit (2) from the dividend to 77 and continue with: 772 / 641

Moving on to step 7:
772 divided by 641 is 1 with a remainder of 131.
Use 1 as the next digit of our solution. 
Result so far: 11641.0
Deduct 641 from 772 and we're left with 131.
Append the next digit (8) from the dividend to 131 and continue with: 1318 / 641

Let's proceed to step 8:
When dividing 1318 by 641, we get 2 with a remainder of 36.
Record the quotient 2 as the next digit in the result. 
Result so far: 116412.0
Deduct 1282 from 1318 and we're left with 36.
Since there are no more digits in the dividend, we add a zero to the remainder making it 360, and continue the process.

Moving on to step 9:
When dividing 360 by 641, we get 0 with a remainder of 360.
The next digit of our result is 0. 
Result so far: 116412.0
The remainder is 360 after subtracting 0 from 360.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3600, and continue the process.

Let's proceed to step 10:
If we divide 3600 by 641, we get 5 and a remainder of 395.
Use 5 as the next digit of our solution. 
Result so far: 116412.05
Subtracting 3205 from 3600 leaves us with 395.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3950, and continue the process.

Advancing to step 11:
The number 641 fits into 3950 6 times, leaving a remainder of 104.
Put 6 as the next digit of the answer. 
Result so far: 116412.056
If we subtract 3846 from 3950, we get 104.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1040, and continue the process.

Step 12:
The number 641 fits into 1040 1 times, leaving a remainder of 399.
The number 1 becomes the next digit in our result. 
Result so far: 116412.0561
Subtract 641 from 1040 to get 399.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3990, and continue the process.

Let's proceed to step 13:
When dividing 3990 by 641, we get 6 with a remainder of 144.
Record the quotient 6 as the next digit in the result. 
Result so far: 116412.05616
Subtract 3846 from 3990 to get 144.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1440, and continue the process.

Going ahead to step 14:
The number 641 fits into 1440 2 times, leaving a remainder of 158.
Put 2 as the next digit of the answer. 
Result so far: 116412.056162
Subtract 1282 from 1440 to get 158.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1580, and continue the process.

Going ahead to step 15:
When dividing 1580 by 641, we get 2 with a remainder of 298.
Put 2 as the next digit of the answer. 
Result so far: 116412.0561622
Subtracting 1282 from 1580 leaves us with 298.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2980, and continue the process.

In conclusion, the division gives 116412.0561622 with a balance of 2.98e-06.