39968960 divided by 671 
The aim is to understand the frequency of 671 in 39968960.

On to step 1:
The number 671 fits into 3 0 times, leaving a remainder of 3.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 3, we get 3.
Fetch the next digit (9) from the dividend, attach it to 3 and continue: 39 / 671

Advancing to step 2:
If we divide 39 by 671, we get 0 and a remainder of 39.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 39 and we're left with 39.
Append the next digit (9) from the dividend to 39 and continue with: 399 / 671

Going ahead to step 3:
671 goes into 399 0 times with a remainder of 399.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 399 after subtracting 0 from 399.
Append the next digit (6) from the dividend to 399 and continue with: 3996 / 671

Let's proceed to step 4:
671 goes into 3996 5 times with a remainder of 641.
Write down 5 as next digit of the result. 
Result so far: 5.0
If we subtract 3355 from 3996, we get 641.
Take the next digit (8) from the dividend and append it to 641, then repeat: 6418 / 671

Let's proceed to step 5:
6418 divided by 671 is 9 with a remainder of 379.
Write down 9 as next digit of the result. 
Result so far: 59.0
If we take 6039 away from 6418, we end up with 379.
Fetch the next digit (9) from the dividend, attach it to 379 and continue: 3799 / 671

Let's proceed to step 6:
If we divide 3799 by 671, we get 5 and a remainder of 444.
The number 5 becomes the next digit in our result. 
Result so far: 595.0
Subtract 3355 from 3799 to get 444.
Append the next digit (6) from the dividend to 444 and continue with: 4446 / 671

Advancing to step 7:
If we divide 4446 by 671, we get 6 and a remainder of 420.
The number 6 becomes the next digit in our result. 
Result so far: 5956.0
Subtract 4026 from 4446 to get 420.
Grab the next digit (0) from the dividend, add it to 420, then carry on: 4200 / 671

On to step 8:
4200 divided by 671 is 6 with a remainder of 174.
The next digit of our result is 6. 
Result so far: 59566.0
If we take 4026 away from 4200, we end up with 174.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1740, and continue the process.

Moving on to step 9:
If we divide 1740 by 671, we get 2 and a remainder of 398.
Put 2 as the next digit of the answer. 
Result so far: 59566.2
Deduct 1342 from 1740 and we're left with 398.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3980, and continue the process.

Let's proceed to step 10:
The number 671 fits into 3980 5 times, leaving a remainder of 625.
Put 5 as the next digit of the answer. 
Result so far: 59566.25
Subtract 3355 from 3980 to get 625.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6250, and continue the process.

Going ahead to step 11:
If we divide 6250 by 671, we get 9 and a remainder of 211.
Use 9 as the next digit of our solution. 
Result so far: 59566.259
The remainder is 211 after subtracting 6039 from 6250.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2110, and continue the process.

Going ahead to step 12:
If we divide 2110 by 671, we get 3 and a remainder of 97.
Put 3 as the next digit of the answer. 
Result so far: 59566.2593
The remainder is 97 after subtracting 2013 from 2110.
Since there are no more digits in the dividend, we add a zero to the remainder making it 970, and continue the process.

Moving on to step 13:
970 divided by 671 is 1 with a remainder of 299.
Put 1 as the next digit of the answer. 
Result so far: 59566.25931
The remainder is 299 after subtracting 671 from 970.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2990, and continue the process.

Step 14:
671 can be fit into 2990 4 times, resulting in a remainder of 306.
Use 4 as the next digit of our solution. 
Result so far: 59566.259314
Subtract 2684 from 2990 to get 306.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3060, and continue the process.

Going ahead to step 15:
The number 671 fits into 3060 4 times, leaving a remainder of 376.
Use 4 as the next digit of our solution. 
Result so far: 59566.2593144
Subtract 2684 from 3060 to get 376.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3760, and continue the process.

In conclusion, the division gives 59566.2593144 with a balance of 3.76e-06.