We look at the division of 21399246 by 956 
The aim is to understand the frequency of 956 in 21399246.

Advancing to step 1:
The number 956 fits into 2 0 times, leaving a remainder of 2.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 2, we get 2.
Grab the next digit (1) from the dividend, add it to 2, then carry on: 21 / 956

On to step 2:
When dividing 21 by 956, we get 0 with a remainder of 21.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtracting 0 from 21 leaves us with 21.
Bring next digit (3) of the dividend behind the 21 and repeat the process: 213 / 956

Let's proceed to step 3:
213 divided by 956 is 0 with a remainder of 213.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 213 to get 213.
Include the next digit (9) from the dividend after 213, then repeat: 2139 / 956

Moving on to step 4:
The number 956 fits into 2139 2 times, leaving a remainder of 227.
Put 2 as the next digit of the answer. 
Result so far: 2.0
If we subtract 1912 from 2139, we get 227.
Grab the next digit (9) from the dividend, add it to 227, then carry on: 2279 / 956

Moving on to step 5:
When dividing 2279 by 956, we get 2 with a remainder of 367.
Record the quotient 2 as the next digit in the result. 
Result so far: 22.0
If we take 1912 away from 2279, we end up with 367.
Include the next digit (2) from the dividend after 367, then repeat: 3672 / 956

Let's proceed to step 6:
956 goes into 3672 3 times with a remainder of 804.
Use 3 as the next digit of our solution. 
Result so far: 223.0
The remainder is 804 after subtracting 2868 from 3672.
Take the next digit (4) from the dividend and append it to 804, then repeat: 8044 / 956

Advancing to step 7:
956 can be fit into 8044 8 times, resulting in a remainder of 396.
Use 8 as the next digit of our solution. 
Result so far: 2238.0
If we take 7648 away from 8044, we end up with 396.
Grab the next digit (6) from the dividend, add it to 396, then carry on: 3966 / 956

Let's proceed to step 8:
The number 956 fits into 3966 4 times, leaving a remainder of 142.
Put 4 as the next digit of the answer. 
Result so far: 22384.0
Deduct 3824 from 3966 and we're left with 142.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1420, and continue the process.

On to step 9:
If we divide 1420 by 956, we get 1 and a remainder of 464.
Put 1 as the next digit of the answer. 
Result so far: 22384.1
If we take 956 away from 1420, we end up with 464.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4640, and continue the process.

Moving on to step 10:
If we divide 4640 by 956, we get 4 and a remainder of 816.
Write down 4 as next digit of the result. 
Result so far: 22384.14
Deduct 3824 from 4640 and we're left with 816.
Since there are no more digits in the dividend, we add a zero to the remainder making it 8160, and continue the process.

Let's proceed to step 11:
When dividing 8160 by 956, we get 8 with a remainder of 512.
The next digit of our result is 8. 
Result so far: 22384.148
The remainder is 512 after subtracting 7648 from 8160.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5120, and continue the process.

Advancing to step 12:
The number 956 fits into 5120 5 times, leaving a remainder of 340.
Put 5 as the next digit of the answer. 
Result so far: 22384.1485
If we take 4780 away from 5120, we end up with 340.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3400, and continue the process.

Going ahead to step 13:
956 can be fit into 3400 3 times, resulting in a remainder of 532.
The next digit of our result is 3. 
Result so far: 22384.14853
If we subtract 2868 from 3400, we get 532.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5320, and continue the process.

Advancing to step 14:
956 goes into 5320 5 times with a remainder of 540.
Record the quotient 5 as the next digit in the result. 
Result so far: 22384.148535
The remainder is 540 after subtracting 4780 from 5320.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5400, and continue the process.

On to step 15:
The number 956 fits into 5400 5 times, leaving a remainder of 620.
Record the quotient 5 as the next digit in the result. 
Result so far: 22384.1485355
If we subtract 4780 from 5400, we get 620.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6200, and continue the process.

Our division results in 22384.1485355 with a remaining 6.2e-06.