31200000 ÷ 672 
The aim is to understand the frequency of 672 in 31200000.

Advancing to step 1:
The number 672 fits into 3 0 times, leaving a remainder of 3.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 3 and we're left with 3.
Fetch the next digit (1) from the dividend, attach it to 3 and continue: 31 / 672

Moving on to step 2:
The number 672 fits into 31 0 times, leaving a remainder of 31.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 31, we get 31.
Grab the next digit (2) from the dividend, add it to 31, then carry on: 312 / 672

Moving on to step 3:
When dividing 312 by 672, we get 0 with a remainder of 312.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 312 after subtracting 0 from 312.
Grab the next digit (0) from the dividend, add it to 312, then carry on: 3120 / 672

On to step 4:
3120 divided by 672 is 4 with a remainder of 432.
Use 4 as the next digit of our solution. 
Result so far: 4.0
The remainder is 432 after subtracting 2688 from 3120.
Grab the next digit (0) from the dividend, add it to 432, then carry on: 4320 / 672

On to step 5:
672 goes into 4320 6 times with a remainder of 288.
Put 6 as the next digit of the answer. 
Result so far: 46.0
Subtracting 4032 from 4320 leaves us with 288.
Append the next digit (0) from the dividend to 288 and continue with: 2880 / 672

On to step 6:
2880 divided by 672 is 4 with a remainder of 192.
The number 4 becomes the next digit in our result. 
Result so far: 464.0
Subtract 2688 from 2880 to get 192.
Fetch the next digit (0) from the dividend, attach it to 192 and continue: 1920 / 672

On to step 7:
When dividing 1920 by 672, we get 2 with a remainder of 576.
Use 2 as the next digit of our solution. 
Result so far: 4642.0
If we take 1344 away from 1920, we end up with 576.
Take the next digit (0) from the dividend and append it to 576, then repeat: 5760 / 672

Step 8:
672 can be fit into 5760 8 times, resulting in a remainder of 384.
Write down 8 as next digit of the result. 
Result so far: 46428.0
Subtracting 5376 from 5760 leaves us with 384.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3840, and continue the process.

Let's proceed to step 9:
If we divide 3840 by 672, we get 5 and a remainder of 480.
Put 5 as the next digit of the answer. 
Result so far: 46428.5
If we subtract 3360 from 3840, we get 480.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4800, and continue the process.

Let's proceed to step 10:
The number 672 fits into 4800 7 times, leaving a remainder of 96.
The next digit of our result is 7. 
Result so far: 46428.57
Subtracting 4704 from 4800 leaves us with 96.
Since there are no more digits in the dividend, we add a zero to the remainder making it 960, and continue the process.

Moving on to step 11:
The number 672 fits into 960 1 times, leaving a remainder of 288.
Write down 1 as next digit of the result. 
Result so far: 46428.571
If we take 672 away from 960, we end up with 288.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2880, and continue the process.

Step 12:
The number 672 fits into 2880 4 times, leaving a remainder of 192.
Put 4 as the next digit of the answer. 
Result so far: 46428.5714
Deduct 2688 from 2880 and we're left with 192.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1920, and continue the process.

Let's proceed to step 13:
When dividing 1920 by 672, we get 2 with a remainder of 576.
Record the quotient 2 as the next digit in the result. 
Result so far: 46428.57142
Deduct 1344 from 1920 and we're left with 576.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5760, and continue the process.

On to step 14:
672 can be fit into 5760 8 times, resulting in a remainder of 384.
Put 8 as the next digit of the answer. 
Result so far: 46428.571428
If we subtract 5376 from 5760, we get 384.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3840, and continue the process.

Let's proceed to step 15:
3840 divided by 672 is 5 with a remainder of 480.
The next digit of our result is 5. 
Result so far: 46428.5714285
Deduct 3360 from 3840 and we're left with 480.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4800, and continue the process.

On to step 16:
672 goes into 4800 7 times with a remainder of 96.
The number 7 becomes the next digit in our result. 
Result so far: 46428.57142857
Subtracting 4704 from 4800 leaves us with 96.
Since there are no more digits in the dividend, we add a zero to the remainder making it 960, and continue the process.

The final result is 46428.57142857 with a remainder of 9.6e-08.