10289195 ÷ 646 
The aim is to understand the frequency of 646 in 10289195.

Going ahead to step 1:
When dividing 1 by 646, we get 0 with a remainder of 1.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 1, we end up with 1.
Append the next digit (0) from the dividend to 1 and continue with: 10 / 646

Step 2:
The number 646 fits into 10 0 times, leaving a remainder of 10.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 10 after subtracting 0 from 10.
Append the next digit (2) from the dividend to 10 and continue with: 102 / 646

Advancing to step 3:
If we divide 102 by 646, we get 0 and a remainder of 102.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 102, we get 102.
Take the next digit (8) from the dividend and append it to 102, then repeat: 1028 / 646

Advancing to step 4:
The number 646 fits into 1028 1 times, leaving a remainder of 382.
Put 1 as the next digit of the answer. 
Result so far: 1.0
The remainder is 382 after subtracting 646 from 1028.
Grab the next digit (9) from the dividend, add it to 382, then carry on: 3829 / 646

On to step 5:
The number 646 fits into 3829 5 times, leaving a remainder of 599.
The number 5 becomes the next digit in our result. 
Result so far: 15.0
If we take 3230 away from 3829, we end up with 599.
Append the next digit (1) from the dividend to 599 and continue with: 5991 / 646

Advancing to step 6:
646 goes into 5991 9 times with a remainder of 177.
Write down 9 as next digit of the result. 
Result so far: 159.0
The remainder is 177 after subtracting 5814 from 5991.
Append the next digit (9) from the dividend to 177 and continue with: 1779 / 646

Step 7:
646 goes into 1779 2 times with a remainder of 487.
Use 2 as the next digit of our solution. 
Result so far: 1592.0
Deduct 1292 from 1779 and we're left with 487.
Fetch the next digit (5) from the dividend, attach it to 487 and continue: 4875 / 646

Let's proceed to step 8:
646 goes into 4875 7 times with a remainder of 353.
Record the quotient 7 as the next digit in the result. 
Result so far: 15927.0
Deduct 4522 from 4875 and we're left with 353.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3530, and continue the process.

Step 9:
When dividing 3530 by 646, we get 5 with a remainder of 300.
Use 5 as the next digit of our solution. 
Result so far: 15927.5
Deduct 3230 from 3530 and we're left with 300.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3000, and continue the process.

Moving on to step 10:
When dividing 3000 by 646, we get 4 with a remainder of 416.
Write down 4 as next digit of the result. 
Result so far: 15927.54
If we subtract 2584 from 3000, we get 416.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4160, and continue the process.

Let's proceed to step 11:
If we divide 4160 by 646, we get 6 and a remainder of 284.
The next digit of our result is 6. 
Result so far: 15927.546
If we subtract 3876 from 4160, we get 284.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2840, and continue the process.

Advancing to step 12:
646 goes into 2840 4 times with a remainder of 256.
Use 4 as the next digit of our solution. 
Result so far: 15927.5464
If we subtract 2584 from 2840, we get 256.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2560, and continue the process.

Let's proceed to step 13:
If we divide 2560 by 646, we get 3 and a remainder of 622.
Put 3 as the next digit of the answer. 
Result so far: 15927.54643
The remainder is 622 after subtracting 1938 from 2560.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6220, and continue the process.

Advancing to step 14:
When dividing 6220 by 646, we get 9 with a remainder of 406.
Put 9 as the next digit of the answer. 
Result so far: 15927.546439
Subtract 5814 from 6220 to get 406.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4060, and continue the process.

Going ahead to step 15:
4060 divided by 646 is 6 with a remainder of 184.
Put 6 as the next digit of the answer. 
Result so far: 15927.5464396
Subtracting 3876 from 4060 leaves us with 184.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1840, and continue the process.

Let's proceed to step 16:
If we divide 1840 by 646, we get 2 and a remainder of 548.
Put 2 as the next digit of the answer. 
Result so far: 15927.54643962
Deduct 1292 from 1840 and we're left with 548.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5480, and continue the process.

Our division results in 15927.54643962 with a remaining 5.48e-07.