We divide 64353421 by 907
The aim is to understand the frequency of 907 in 64353421.

Advancing to step 1:
If we divide 6 by 907, we get 0 and a remainder of 6.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 6 to get 6.
Bring next digit (4) of the dividend behind the 6 and repeat the process: 64 / 907

Step 2:
907 can be fit into 64 0 times, resulting in a remainder of 64.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 64 to get 64.
Bring next digit (3) of the dividend behind the 64 and repeat the process: 643 / 907

On to step 3:
If we divide 643 by 907, we get 0 and a remainder of 643.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 643 to get 643.
Include the next digit (5) from the dividend after 643, then repeat: 6435 / 907

Advancing to step 4:
907 can be fit into 6435 7 times, resulting in a remainder of 86.
Use 7 as the next digit of our solution. 
Result so far: 7.0
Subtracting 6349 from 6435 leaves us with 86.
Take the next digit (3) from the dividend and append it to 86, then repeat: 863 / 907

Advancing to step 5:
When dividing 863 by 907, we get 0 with a remainder of 863.
Record the quotient 0 as the next digit in the result. 
Result so far: 70.0
If we subtract 0 from 863, we get 863.
Grab the next digit (4) from the dividend, add it to 863, then carry on: 8634 / 907

Advancing to step 6:
8634 divided by 907 is 9 with a remainder of 471.
Use 9 as the next digit of our solution. 
Result so far: 709.0
Subtracting 8163 from 8634 leaves us with 471.
Grab the next digit (2) from the dividend, add it to 471, then carry on: 4712 / 907

Moving on to step 7:
The number 907 fits into 4712 5 times, leaving a remainder of 177.
Record the quotient 5 as the next digit in the result. 
Result so far: 7095.0
The remainder is 177 after subtracting 4535 from 4712.
Append the next digit (1) from the dividend to 177 and continue with: 1771 / 907

On to step 8:
907 goes into 1771 1 times with a remainder of 864.
The number 1 becomes the next digit in our result. 
Result so far: 70951.0
Deduct 907 from 1771 and we're left with 864.
Since there are no more digits in the dividend, we add a zero to the remainder making it 8640, and continue the process.

Going ahead to step 9:
907 can be fit into 8640 9 times, resulting in a remainder of 477.
The number 9 becomes the next digit in our result. 
Result so far: 70951.9
The remainder is 477 after subtracting 8163 from 8640.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4770, and continue the process.

On to step 10:
The number 907 fits into 4770 5 times, leaving a remainder of 235.
The next digit of our result is 5. 
Result so far: 70951.95
Subtracting 4535 from 4770 leaves us with 235.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2350, and continue the process.

Moving on to step 11:
When dividing 2350 by 907, we get 2 with a remainder of 536.
Write down 2 as next digit of the result. 
Result so far: 70951.952
If we subtract 1814 from 2350, we get 536.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5360, and continue the process.

Step 12:
907 goes into 5360 5 times with a remainder of 825.
Use 5 as the next digit of our solution. 
Result so far: 70951.9525
Subtract 4535 from 5360 to get 825.
Since there are no more digits in the dividend, we add a zero to the remainder making it 8250, and continue the process.

Moving on to step 13:
8250 divided by 907 is 9 with a remainder of 87.
The next digit of our result is 9. 
Result so far: 70951.95259
If we take 8163 away from 8250, we end up with 87.
Since there are no more digits in the dividend, we add a zero to the remainder making it 870, and continue the process.

Let's proceed to step 14:
907 can be fit into 870 0 times, resulting in a remainder of 870.
Write down 0 as next digit of the result. 
Result so far: 70951.95259
Deduct 0 from 870 and we're left with 870.
Since there are no more digits in the dividend, we add a zero to the remainder making it 8700, and continue the process.

Going ahead to step 15:
When dividing 8700 by 907, we get 9 with a remainder of 537.
The number 9 becomes the next digit in our result. 
Result so far: 70951.9525909
The remainder is 537 after subtracting 8163 from 8700.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5370, and continue the process.

Moving on to step 16:
5370 divided by 907 is 5 with a remainder of 835.
Record the quotient 5 as the next digit in the result. 
Result so far: 70951.95259095
Deduct 4535 from 5370 and we're left with 835.
Since there are no more digits in the dividend, we add a zero to the remainder making it 8350, and continue the process.

After the division, we end up with 70951.95259095 and a remainder of 8.35e-07.