77240910 divided by 641 
The aim is to understand the frequency of 641 in 77240910.

On to step 1:
641 can be fit into 7 0 times, resulting in a remainder of 7.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 7 after subtracting 0 from 7.
Take the next digit (7) from the dividend and append it to 7, then repeat: 77 / 641

Advancing to step 2:
641 goes into 77 0 times with a remainder of 77.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 77 leaves us with 77.
Bring next digit (2) of the dividend behind the 77 and repeat the process: 772 / 641

Step 3:
The number 641 fits into 772 1 times, leaving a remainder of 131.
Write down 1 as next digit of the result. 
Result so far: 1.0
The remainder is 131 after subtracting 641 from 772.
Grab the next digit (4) from the dividend, add it to 131, then carry on: 1314 / 641

Moving on to step 4:
641 can be fit into 1314 2 times, resulting in a remainder of 32.
Write down 2 as next digit of the result. 
Result so far: 12.0
Deduct 1282 from 1314 and we're left with 32.
Grab the next digit (0) from the dividend, add it to 32, then carry on: 320 / 641

Advancing to step 5:
641 can be fit into 320 0 times, resulting in a remainder of 320.
Use 0 as the next digit of our solution. 
Result so far: 120.0
Deduct 0 from 320 and we're left with 320.
Include the next digit (9) from the dividend after 320, then repeat: 3209 / 641

Step 6:
641 can be fit into 3209 5 times, resulting in a remainder of 4.
Use 5 as the next digit of our solution. 
Result so far: 1205.0
Subtract 3205 from 3209 to get 4.
Take the next digit (1) from the dividend and append it to 4, then repeat: 41 / 641

Moving on to step 7:
41 divided by 641 is 0 with a remainder of 41.
Record the quotient 0 as the next digit in the result. 
Result so far: 12050.0
If we subtract 0 from 41, we get 41.
Grab the next digit (0) from the dividend, add it to 41, then carry on: 410 / 641

Let's proceed to step 8:
If we divide 410 by 641, we get 0 and a remainder of 410.
Put 0 as the next digit of the answer. 
Result so far: 120500.0
Subtracting 0 from 410 leaves us with 410.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4100, and continue the process.

On to step 9:
When dividing 4100 by 641, we get 6 with a remainder of 254.
Write down 6 as next digit of the result. 
Result so far: 120500.6
Deduct 3846 from 4100 and we're left with 254.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2540, and continue the process.

Moving on to step 10:
When dividing 2540 by 641, we get 3 with a remainder of 617.
Record the quotient 3 as the next digit in the result. 
Result so far: 120500.63
If we take 1923 away from 2540, we end up with 617.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6170, and continue the process.

Advancing to step 11:
If we divide 6170 by 641, we get 9 and a remainder of 401.
The next digit of our result is 9. 
Result so far: 120500.639
If we take 5769 away from 6170, we end up with 401.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4010, and continue the process.

Let's proceed to step 12:
The number 641 fits into 4010 6 times, leaving a remainder of 164.
Use 6 as the next digit of our solution. 
Result so far: 120500.6396
If we take 3846 away from 4010, we end up with 164.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1640, and continue the process.

Step 13:
The number 641 fits into 1640 2 times, leaving a remainder of 358.
The number 2 becomes the next digit in our result. 
Result so far: 120500.63962
The remainder is 358 after subtracting 1282 from 1640.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3580, and continue the process.

Step 14:
641 goes into 3580 5 times with a remainder of 375.
Put 5 as the next digit of the answer. 
Result so far: 120500.639625
Subtract 3205 from 3580 to get 375.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3750, and continue the process.

Let's proceed to step 15:
3750 divided by 641 is 5 with a remainder of 545.
Put 5 as the next digit of the answer. 
Result so far: 120500.6396255
Deduct 3205 from 3750 and we're left with 545.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5450, and continue the process.

The final outcome is 120500.6396255, with a leftover of 5.45e-06.