We look at the division of 3963145 by 716 
The aim is to understand the frequency of 716 in 3963145.

On to step 1:
3 divided by 716 is 0 with a remainder of 3.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 3 and we're left with 3.
Take the next digit (9) from the dividend and append it to 3, then repeat: 39 / 716

Let's proceed to step 2:
If we divide 39 by 716, we get 0 and a remainder of 39.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 39 after subtracting 0 from 39.
Grab the next digit (6) from the dividend, add it to 39, then carry on: 396 / 716

On to step 3:
716 goes into 396 0 times with a remainder of 396.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 396 to get 396.
Append the next digit (3) from the dividend to 396 and continue with: 3963 / 716

Let's proceed to step 4:
When dividing 3963 by 716, we get 5 with a remainder of 383.
The next digit of our result is 5. 
Result so far: 5.0
The remainder is 383 after subtracting 3580 from 3963.
Append the next digit (1) from the dividend to 383 and continue with: 3831 / 716

Going ahead to step 5:
716 can be fit into 3831 5 times, resulting in a remainder of 251.
The next digit of our result is 5. 
Result so far: 55.0
The remainder is 251 after subtracting 3580 from 3831.
Grab the next digit (4) from the dividend, add it to 251, then carry on: 2514 / 716

Advancing to step 6:
2514 divided by 716 is 3 with a remainder of 366.
The number 3 becomes the next digit in our result. 
Result so far: 553.0
If we subtract 2148 from 2514, we get 366.
Append the next digit (5) from the dividend to 366 and continue with: 3665 / 716

Step 7:
When dividing 3665 by 716, we get 5 with a remainder of 85.
Put 5 as the next digit of the answer. 
Result so far: 5535.0
If we subtract 3580 from 3665, we get 85.
Since there are no more digits in the dividend, we add a zero to the remainder making it 850, and continue the process.

Advancing to step 8:
716 can be fit into 850 1 times, resulting in a remainder of 134.
The next digit of our result is 1. 
Result so far: 5535.1
If we take 716 away from 850, we end up with 134.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1340, and continue the process.

Advancing to step 9:
716 can be fit into 1340 1 times, resulting in a remainder of 624.
The next digit of our result is 1. 
Result so far: 5535.11
The remainder is 624 after subtracting 716 from 1340.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6240, and continue the process.

The final result is 5535.11 with a remainder of 0.624.