74295671 ÷ 645 
The aim is to understand the frequency of 645 in 74295671.

Advancing to step 1:
If we divide 7 by 645, we get 0 and a remainder of 7.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 7, we end up with 7.
Append the next digit (4) from the dividend to 7 and continue with: 74 / 645

Step 2:
645 goes into 74 0 times with a remainder of 74.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 74 after subtracting 0 from 74.
Grab the next digit (2) from the dividend, add it to 74, then carry on: 742 / 645

Step 3:
645 can be fit into 742 1 times, resulting in a remainder of 97.
Put 1 as the next digit of the answer. 
Result so far: 1.0
Subtract 645 from 742 to get 97.
Bring next digit (9) of the dividend behind the 97 and repeat the process: 979 / 645

Moving on to step 4:
When dividing 979 by 645, we get 1 with a remainder of 334.
Put 1 as the next digit of the answer. 
Result so far: 11.0
If we subtract 645 from 979, we get 334.
Grab the next digit (5) from the dividend, add it to 334, then carry on: 3345 / 645

Advancing to step 5:
The number 645 fits into 3345 5 times, leaving a remainder of 120.
Record the quotient 5 as the next digit in the result. 
Result so far: 115.0
If we take 3225 away from 3345, we end up with 120.
Take the next digit (6) from the dividend and append it to 120, then repeat: 1206 / 645

Advancing to step 6:
645 can be fit into 1206 1 times, resulting in a remainder of 561.
Write down 1 as next digit of the result. 
Result so far: 1151.0
Subtract 645 from 1206 to get 561.
Include the next digit (7) from the dividend after 561, then repeat: 5617 / 645

Step 7:
5617 divided by 645 is 8 with a remainder of 457.
Use 8 as the next digit of our solution. 
Result so far: 11518.0
If we take 5160 away from 5617, we end up with 457.
Take the next digit (1) from the dividend and append it to 457, then repeat: 4571 / 645

Moving on to step 8:
4571 divided by 645 is 7 with a remainder of 56.
Write down 7 as next digit of the result. 
Result so far: 115187.0
The remainder is 56 after subtracting 4515 from 4571.
Since there are no more digits in the dividend, we add a zero to the remainder making it 560, and continue the process.

Going ahead to step 9:
645 goes into 560 0 times with a remainder of 560.
Write down 0 as next digit of the result. 
Result so far: 115187.0
Subtract 0 from 560 to get 560.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5600, and continue the process.

Moving on to step 10:
The number 645 fits into 5600 8 times, leaving a remainder of 440.
Use 8 as the next digit of our solution. 
Result so far: 115187.08
Subtract 5160 from 5600 to get 440.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4400, and continue the process.

Going ahead to step 11:
The number 645 fits into 4400 6 times, leaving a remainder of 530.
Put 6 as the next digit of the answer. 
Result so far: 115187.086
If we subtract 3870 from 4400, we get 530.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5300, and continue the process.

Step 12:
645 goes into 5300 8 times with a remainder of 140.
Record the quotient 8 as the next digit in the result. 
Result so far: 115187.0868
If we subtract 5160 from 5300, we get 140.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1400, and continue the process.

Moving on to step 13:
1400 divided by 645 is 2 with a remainder of 110.
Use 2 as the next digit of our solution. 
Result so far: 115187.08682
The remainder is 110 after subtracting 1290 from 1400.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1100, and continue the process.

Step 14:
645 goes into 1100 1 times with a remainder of 455.
Record the quotient 1 as the next digit in the result. 
Result so far: 115187.086821
If we take 645 away from 1100, we end up with 455.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4550, and continue the process.

Let's proceed to step 15:
645 goes into 4550 7 times with a remainder of 35.
The next digit of our result is 7. 
Result so far: 115187.0868217
Subtracting 4515 from 4550 leaves us with 35.
Since there are no more digits in the dividend, we add a zero to the remainder making it 350, and continue the process.

On to step 16:
350 divided by 645 is 0 with a remainder of 350.
The next digit of our result is 0. 
Result so far: 115187.0868217
The remainder is 350 after subtracting 0 from 350.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3500, and continue the process.

In conclusion, the division gives 115187.0868217 with a balance of 3.5e-07.