79641792 ÷ 781 
The aim is to understand the frequency of 781 in 79641792.

Let's proceed to step 1:
When dividing 7 by 781, we get 0 with a remainder of 7.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 7, we end up with 7.
Take the next digit (9) from the dividend and append it to 7, then repeat: 79 / 781

Step 2:
If we divide 79 by 781, we get 0 and a remainder of 79.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 79 and we're left with 79.
Fetch the next digit (6) from the dividend, attach it to 79 and continue: 796 / 781

Moving on to step 3:
781 can be fit into 796 1 times, resulting in a remainder of 15.
Put 1 as the next digit of the answer. 
Result so far: 1.0
If we subtract 781 from 796, we get 15.
Take the next digit (4) from the dividend and append it to 15, then repeat: 154 / 781

Moving on to step 4:
When dividing 154 by 781, we get 0 with a remainder of 154.
Write down 0 as next digit of the result. 
Result so far: 10.0
If we subtract 0 from 154, we get 154.
Append the next digit (1) from the dividend to 154 and continue with: 1541 / 781

Let's proceed to step 5:
When dividing 1541 by 781, we get 1 with a remainder of 760.
Write down 1 as next digit of the result. 
Result so far: 101.0
If we subtract 781 from 1541, we get 760.
Grab the next digit (7) from the dividend, add it to 760, then carry on: 7607 / 781

Advancing to step 6:
781 can be fit into 7607 9 times, resulting in a remainder of 578.
The number 9 becomes the next digit in our result. 
Result so far: 1019.0
The remainder is 578 after subtracting 7029 from 7607.
Grab the next digit (9) from the dividend, add it to 578, then carry on: 5789 / 781

Moving on to step 7:
5789 divided by 781 is 7 with a remainder of 322.
Write down 7 as next digit of the result. 
Result so far: 10197.0
The remainder is 322 after subtracting 5467 from 5789.
Fetch the next digit (2) from the dividend, attach it to 322 and continue: 3222 / 781

Advancing to step 8:
If we divide 3222 by 781, we get 4 and a remainder of 98.
The number 4 becomes the next digit in our result. 
Result so far: 101974.0
The remainder is 98 after subtracting 3124 from 3222.
Since there are no more digits in the dividend, we add a zero to the remainder making it 980, and continue the process.

Step 9:
The number 781 fits into 980 1 times, leaving a remainder of 199.
The number 1 becomes the next digit in our result. 
Result so far: 101974.1
If we take 781 away from 980, we end up with 199.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1990, and continue the process.

On to step 10:
1990 divided by 781 is 2 with a remainder of 428.
Use 2 as the next digit of our solution. 
Result so far: 101974.12
The remainder is 428 after subtracting 1562 from 1990.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4280, and continue the process.

Step 11:
4280 divided by 781 is 5 with a remainder of 375.
Put 5 as the next digit of the answer. 
Result so far: 101974.125
Subtracting 3905 from 4280 leaves us with 375.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3750, and continue the process.

Moving on to step 12:
The number 781 fits into 3750 4 times, leaving a remainder of 626.
Write down 4 as next digit of the result. 
Result so far: 101974.1254
Deduct 3124 from 3750 and we're left with 626.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6260, and continue the process.

Step 13:
6260 divided by 781 is 8 with a remainder of 12.
Put 8 as the next digit of the answer. 
Result so far: 101974.12548
If we subtract 6248 from 6260, we get 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

Let's proceed to step 14:
If we divide 120 by 781, we get 0 and a remainder of 120.
Write down 0 as next digit of the result. 
Result so far: 101974.12548
If we subtract 0 from 120, we get 120.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1200, and continue the process.

On to step 15:
781 goes into 1200 1 times with a remainder of 419.
Put 1 as the next digit of the answer. 
Result so far: 101974.1254801
Subtracting 781 from 1200 leaves us with 419.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4190, and continue the process.

Moving on to step 16:
4190 divided by 781 is 5 with a remainder of 285.
Record the quotient 5 as the next digit in the result. 
Result so far: 101974.12548015
If we subtract 3905 from 4190, we get 285.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2850, and continue the process.

The quotient of the division is 101974.12548015, and the remainder is 2.85e-07.