We're dividing 77917090 by 859 
The aim is to understand the frequency of 859 in 77917090.

Moving on to step 1:
The number 859 fits into 7 0 times, leaving a remainder of 7.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 7 after subtracting 0 from 7.
Append the next digit (7) from the dividend to 7 and continue with: 77 / 859

On to step 2:
859 goes into 77 0 times with a remainder of 77.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 77 after subtracting 0 from 77.
Append the next digit (9) from the dividend to 77 and continue with: 779 / 859

Going ahead to step 3:
If we divide 779 by 859, we get 0 and a remainder of 779.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtracting 0 from 779 leaves us with 779.
Bring next digit (1) of the dividend behind the 779 and repeat the process: 7791 / 859

Advancing to step 4:
859 goes into 7791 9 times with a remainder of 60.
Write down 9 as next digit of the result. 
Result so far: 9.0
Subtracting 7731 from 7791 leaves us with 60.
Include the next digit (7) from the dividend after 60, then repeat: 607 / 859

Advancing to step 5:
When dividing 607 by 859, we get 0 with a remainder of 607.
Put 0 as the next digit of the answer. 
Result so far: 90.0
If we take 0 away from 607, we end up with 607.
Fetch the next digit (0) from the dividend, attach it to 607 and continue: 6070 / 859

Step 6:
The number 859 fits into 6070 7 times, leaving a remainder of 57.
Put 7 as the next digit of the answer. 
Result so far: 907.0
Deduct 6013 from 6070 and we're left with 57.
Append the next digit (9) from the dividend to 57 and continue with: 579 / 859

Step 7:
If we divide 579 by 859, we get 0 and a remainder of 579.
Use 0 as the next digit of our solution. 
Result so far: 9070.0
Subtract 0 from 579 to get 579.
Grab the next digit (0) from the dividend, add it to 579, then carry on: 5790 / 859

Advancing to step 8:
859 goes into 5790 6 times with a remainder of 636.
The number 6 becomes the next digit in our result. 
Result so far: 90706.0
Subtract 5154 from 5790 to get 636.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6360, and continue the process.

Going ahead to step 9:
859 can be fit into 6360 7 times, resulting in a remainder of 347.
The number 7 becomes the next digit in our result. 
Result so far: 90706.7
Subtracting 6013 from 6360 leaves us with 347.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3470, and continue the process.

Step 10:
3470 divided by 859 is 4 with a remainder of 34.
Record the quotient 4 as the next digit in the result. 
Result so far: 90706.74
Subtract 3436 from 3470 to get 34.
Since there are no more digits in the dividend, we add a zero to the remainder making it 340, and continue the process.

Going ahead to step 11:
859 goes into 340 0 times with a remainder of 340.
Record the quotient 0 as the next digit in the result. 
Result so far: 90706.74
The remainder is 340 after subtracting 0 from 340.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3400, and continue the process.

Moving on to step 12:
3400 divided by 859 is 3 with a remainder of 823.
Write down 3 as next digit of the result. 
Result so far: 90706.7403
The remainder is 823 after subtracting 2577 from 3400.
Since there are no more digits in the dividend, we add a zero to the remainder making it 8230, and continue the process.

Advancing to step 13:
859 goes into 8230 9 times with a remainder of 499.
The number 9 becomes the next digit in our result. 
Result so far: 90706.74039
Deduct 7731 from 8230 and we're left with 499.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4990, and continue the process.

On to step 14:
4990 divided by 859 is 5 with a remainder of 695.
Write down 5 as next digit of the result. 
Result so far: 90706.740395
Subtracting 4295 from 4990 leaves us with 695.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6950, and continue the process.

Step 15:
If we divide 6950 by 859, we get 8 and a remainder of 78.
Write down 8 as next digit of the result. 
Result so far: 90706.7403958
Subtracting 6872 from 6950 leaves us with 78.
Since there are no more digits in the dividend, we add a zero to the remainder making it 780, and continue the process.

Let's proceed to step 16:
The number 859 fits into 780 0 times, leaving a remainder of 780.
Put 0 as the next digit of the answer. 
Result so far: 90706.7403958
Deduct 0 from 780 and we're left with 780.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7800, and continue the process.

After the division, we end up with 90706.7403958 and a remainder of 7.8e-07.