66355942 ÷ 851 
The aim is to understand the frequency of 851 in 66355942.

Going ahead to step 1:
6 divided by 851 is 0 with a remainder of 6.
The next digit of our result is 0. 
Result so far: 0.0
Subtract 0 from 6 to get 6.
Append the next digit (6) from the dividend to 6 and continue with: 66 / 851

On to step 2:
When dividing 66 by 851, we get 0 with a remainder of 66.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 66 after subtracting 0 from 66.
Bring next digit (3) of the dividend behind the 66 and repeat the process: 663 / 851

On to step 3:
851 goes into 663 0 times with a remainder of 663.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 663 to get 663.
Grab the next digit (5) from the dividend, add it to 663, then carry on: 6635 / 851

Advancing to step 4:
When dividing 6635 by 851, we get 7 with a remainder of 678.
Write down 7 as next digit of the result. 
Result so far: 7.0
Deduct 5957 from 6635 and we're left with 678.
Include the next digit (5) from the dividend after 678, then repeat: 6785 / 851

Going ahead to step 5:
The number 851 fits into 6785 7 times, leaving a remainder of 828.
Use 7 as the next digit of our solution. 
Result so far: 77.0
Subtract 5957 from 6785 to get 828.
Fetch the next digit (9) from the dividend, attach it to 828 and continue: 8289 / 851

On to step 6:
If we divide 8289 by 851, we get 9 and a remainder of 630.
Put 9 as the next digit of the answer. 
Result so far: 779.0
Subtract 7659 from 8289 to get 630.
Append the next digit (4) from the dividend to 630 and continue with: 6304 / 851

Going ahead to step 7:
If we divide 6304 by 851, we get 7 and a remainder of 347.
The next digit of our result is 7. 
Result so far: 7797.0
Subtracting 5957 from 6304 leaves us with 347.
Grab the next digit (2) from the dividend, add it to 347, then carry on: 3472 / 851

On to step 8:
3472 divided by 851 is 4 with a remainder of 68.
Record the quotient 4 as the next digit in the result. 
Result so far: 77974.0
If we take 3404 away from 3472, we end up with 68.
Since there are no more digits in the dividend, we add a zero to the remainder making it 680, and continue the process.

Advancing to step 9:
851 goes into 680 0 times with a remainder of 680.
Put 0 as the next digit of the answer. 
Result so far: 77974.0
Subtracting 0 from 680 leaves us with 680.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6800, and continue the process.

Advancing to step 10:
When dividing 6800 by 851, we get 7 with a remainder of 843.
Write down 7 as next digit of the result. 
Result so far: 77974.07
Deduct 5957 from 6800 and we're left with 843.
Since there are no more digits in the dividend, we add a zero to the remainder making it 8430, and continue the process.

Going ahead to step 11:
If we divide 8430 by 851, we get 9 and a remainder of 771.
The next digit of our result is 9. 
Result so far: 77974.079
The remainder is 771 after subtracting 7659 from 8430.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7710, and continue the process.

On to step 12:
The number 851 fits into 7710 9 times, leaving a remainder of 51.
The next digit of our result is 9. 
Result so far: 77974.0799
Deduct 7659 from 7710 and we're left with 51.
Since there are no more digits in the dividend, we add a zero to the remainder making it 510, and continue the process.

Our division results in 77974.0799 with a remaining 0.00051.