9221576 divided by 781 
The aim is to understand the frequency of 781 in 9221576.

Let's proceed to step 1:
When dividing 9 by 781, we get 0 with a remainder of 9.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 9 to get 9.
Take the next digit (2) from the dividend and append it to 9, then repeat: 92 / 781

Step 2:
The number 781 fits into 92 0 times, leaving a remainder of 92.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
The remainder is 92 after subtracting 0 from 92.
Grab the next digit (2) from the dividend, add it to 92, then carry on: 922 / 781

Advancing to step 3:
When dividing 922 by 781, we get 1 with a remainder of 141.
Use 1 as the next digit of our solution. 
Result so far: 1.0
If we take 781 away from 922, we end up with 141.
Fetch the next digit (1) from the dividend, attach it to 141 and continue: 1411 / 781

Let's proceed to step 4:
1411 divided by 781 is 1 with a remainder of 630.
Put 1 as the next digit of the answer. 
Result so far: 11.0
If we take 781 away from 1411, we end up with 630.
Bring next digit (5) of the dividend behind the 630 and repeat the process: 6305 / 781

Let's proceed to step 5:
781 can be fit into 6305 8 times, resulting in a remainder of 57.
The next digit of our result is 8. 
Result so far: 118.0
Deduct 6248 from 6305 and we're left with 57.
Include the next digit (7) from the dividend after 57, then repeat: 577 / 781

On to step 6:
If we divide 577 by 781, we get 0 and a remainder of 577.
Put 0 as the next digit of the answer. 
Result so far: 1180.0
The remainder is 577 after subtracting 0 from 577.
Grab the next digit (6) from the dividend, add it to 577, then carry on: 5776 / 781

Moving on to step 7:
If we divide 5776 by 781, we get 7 and a remainder of 309.
Put 7 as the next digit of the answer. 
Result so far: 11807.0
If we take 5467 away from 5776, we end up with 309.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3090, and continue the process.

Going ahead to step 8:
781 goes into 3090 3 times with a remainder of 747.
Use 3 as the next digit of our solution. 
Result so far: 11807.3
The remainder is 747 after subtracting 2343 from 3090.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7470, and continue the process.

Step 9:
781 goes into 7470 9 times with a remainder of 441.
The number 9 becomes the next digit in our result. 
Result so far: 11807.39
Subtracting 7029 from 7470 leaves us with 441.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4410, and continue the process.

Step 10:
4410 divided by 781 is 5 with a remainder of 505.
Put 5 as the next digit of the answer. 
Result so far: 11807.395
The remainder is 505 after subtracting 3905 from 4410.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5050, and continue the process.

On to step 11:
When dividing 5050 by 781, we get 6 with a remainder of 364.
Write down 6 as next digit of the result. 
Result so far: 11807.3956
Subtract 4686 from 5050 to get 364.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3640, and continue the process.

On to step 12:
When dividing 3640 by 781, we get 4 with a remainder of 516.
Write down 4 as next digit of the result. 
Result so far: 11807.39564
Deduct 3124 from 3640 and we're left with 516.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5160, and continue the process.

Step 13:
781 goes into 5160 6 times with a remainder of 474.
The next digit of our result is 6. 
Result so far: 11807.395646
Subtract 4686 from 5160 to get 474.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4740, and continue the process.

Step 14:
781 can be fit into 4740 6 times, resulting in a remainder of 54.
Record the quotient 6 as the next digit in the result. 
Result so far: 11807.3956466
Subtracting 4686 from 4740 leaves us with 54.
Since there are no more digits in the dividend, we add a zero to the remainder making it 540, and continue the process.

Our division results in 11807.3956466 with a remaining 5.4e-07.