We divide 70389812 by 816
The aim is to understand the frequency of 816 in 70389812.

Step 1:
If we divide 7 by 816, we get 0 and a remainder of 7.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
The remainder is 7 after subtracting 0 from 7.
Fetch the next digit (0) from the dividend, attach it to 7 and continue: 70 / 816

Let's proceed to step 2:
The number 816 fits into 70 0 times, leaving a remainder of 70.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 70, we end up with 70.
Grab the next digit (3) from the dividend, add it to 70, then carry on: 703 / 816

Moving on to step 3:
816 goes into 703 0 times with a remainder of 703.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 703, we end up with 703.
Take the next digit (8) from the dividend and append it to 703, then repeat: 7038 / 816

Advancing to step 4:
816 can be fit into 7038 8 times, resulting in a remainder of 510.
Record the quotient 8 as the next digit in the result. 
Result so far: 8.0
Deduct 6528 from 7038 and we're left with 510.
Bring next digit (9) of the dividend behind the 510 and repeat the process: 5109 / 816

On to step 5:
5109 divided by 816 is 6 with a remainder of 213.
Use 6 as the next digit of our solution. 
Result so far: 86.0
If we subtract 4896 from 5109, we get 213.
Include the next digit (8) from the dividend after 213, then repeat: 2138 / 816

Moving on to step 6:
When dividing 2138 by 816, we get 2 with a remainder of 506.
The next digit of our result is 2. 
Result so far: 862.0
Deduct 1632 from 2138 and we're left with 506.
Take the next digit (1) from the dividend and append it to 506, then repeat: 5061 / 816

Step 7:
The number 816 fits into 5061 6 times, leaving a remainder of 165.
Write down 6 as next digit of the result. 
Result so far: 8626.0
If we take 4896 away from 5061, we end up with 165.
Include the next digit (2) from the dividend after 165, then repeat: 1652 / 816

Going ahead to step 8:
1652 divided by 816 is 2 with a remainder of 20.
The number 2 becomes the next digit in our result. 
Result so far: 86262.0
Subtracting 1632 from 1652 leaves us with 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Going ahead to step 9:
The number 816 fits into 200 0 times, leaving a remainder of 200.
Record the quotient 0 as the next digit in the result. 
Result so far: 86262.0
The remainder is 200 after subtracting 0 from 200.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2000, and continue the process.

Step 10:
2000 divided by 816 is 2 with a remainder of 368.
Put 2 as the next digit of the answer. 
Result so far: 86262.02
If we subtract 1632 from 2000, we get 368.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3680, and continue the process.

Advancing to step 11:
3680 divided by 816 is 4 with a remainder of 416.
Write down 4 as next digit of the result. 
Result so far: 86262.024
If we take 3264 away from 3680, we end up with 416.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4160, and continue the process.

Step 12:
816 can be fit into 4160 5 times, resulting in a remainder of 80.
The number 5 becomes the next digit in our result. 
Result so far: 86262.0245
Subtracting 4080 from 4160 leaves us with 80.
Since there are no more digits in the dividend, we add a zero to the remainder making it 800, and continue the process.

Let's proceed to step 13:
816 goes into 800 0 times with a remainder of 800.
Put 0 as the next digit of the answer. 
Result so far: 86262.0245
If we subtract 0 from 800, we get 800.
Since there are no more digits in the dividend, we add a zero to the remainder making it 8000, and continue the process.

Let's proceed to step 14:
816 goes into 8000 9 times with a remainder of 656.
The number 9 becomes the next digit in our result. 
Result so far: 86262.024509
Subtracting 7344 from 8000 leaves us with 656.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6560, and continue the process.

Let's proceed to step 15:
816 can be fit into 6560 8 times, resulting in a remainder of 32.
Put 8 as the next digit of the answer. 
Result so far: 86262.0245098
If we take 6528 away from 6560, we end up with 32.
Since there are no more digits in the dividend, we add a zero to the remainder making it 320, and continue the process.

On to step 16:
816 goes into 320 0 times with a remainder of 320.
Write down 0 as next digit of the result. 
Result so far: 86262.0245098
If we subtract 0 from 320, we get 320.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3200, and continue the process.

The quotient of the division is 86262.0245098, and the remainder is 3.2e-07.