59835978 ÷ 861 
The aim is to understand the frequency of 861 in 59835978.

Advancing to step 1:
If we divide 5 by 861, we get 0 and a remainder of 5.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 5, we get 5.
Take the next digit (9) from the dividend and append it to 5, then repeat: 59 / 861

Moving on to step 2:
59 divided by 861 is 0 with a remainder of 59.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 59 after subtracting 0 from 59.
Append the next digit (8) from the dividend to 59 and continue with: 598 / 861

Advancing to step 3:
If we divide 598 by 861, we get 0 and a remainder of 598.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 598 to get 598.
Fetch the next digit (3) from the dividend, attach it to 598 and continue: 5983 / 861

Advancing to step 4:
861 goes into 5983 6 times with a remainder of 817.
Write down 6 as next digit of the result. 
Result so far: 6.0
If we subtract 5166 from 5983, we get 817.
Fetch the next digit (5) from the dividend, attach it to 817 and continue: 8175 / 861

Going ahead to step 5:
If we divide 8175 by 861, we get 9 and a remainder of 426.
Write down 9 as next digit of the result. 
Result so far: 69.0
If we subtract 7749 from 8175, we get 426.
Grab the next digit (9) from the dividend, add it to 426, then carry on: 4269 / 861

Advancing to step 6:
861 can be fit into 4269 4 times, resulting in a remainder of 825.
The next digit of our result is 4. 
Result so far: 694.0
Deduct 3444 from 4269 and we're left with 825.
Include the next digit (7) from the dividend after 825, then repeat: 8257 / 861

Step 7:
When dividing 8257 by 861, we get 9 with a remainder of 508.
The number 9 becomes the next digit in our result. 
Result so far: 6949.0
Deduct 7749 from 8257 and we're left with 508.
Include the next digit (8) from the dividend after 508, then repeat: 5088 / 861

On to step 8:
861 can be fit into 5088 5 times, resulting in a remainder of 783.
Put 5 as the next digit of the answer. 
Result so far: 69495.0
Subtracting 4305 from 5088 leaves us with 783.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7830, and continue the process.

On to step 9:
When dividing 7830 by 861, we get 9 with a remainder of 81.
The number 9 becomes the next digit in our result. 
Result so far: 69495.9
The remainder is 81 after subtracting 7749 from 7830.
Since there are no more digits in the dividend, we add a zero to the remainder making it 810, and continue the process.

Advancing to step 10:
The number 861 fits into 810 0 times, leaving a remainder of 810.
Record the quotient 0 as the next digit in the result. 
Result so far: 69495.9
If we take 0 away from 810, we end up with 810.
Since there are no more digits in the dividend, we add a zero to the remainder making it 8100, and continue the process.

On to step 11:
When dividing 8100 by 861, we get 9 with a remainder of 351.
Record the quotient 9 as the next digit in the result. 
Result so far: 69495.909
Subtracting 7749 from 8100 leaves us with 351.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3510, and continue the process.

Going ahead to step 12:
When dividing 3510 by 861, we get 4 with a remainder of 66.
The number 4 becomes the next digit in our result. 
Result so far: 69495.9094
If we take 3444 away from 3510, we end up with 66.
Since there are no more digits in the dividend, we add a zero to the remainder making it 660, and continue the process.

Advancing to step 13:
If we divide 660 by 861, we get 0 and a remainder of 660.
Put 0 as the next digit of the answer. 
Result so far: 69495.9094
If we take 0 away from 660, we end up with 660.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6600, and continue the process.

Advancing to step 14:
861 can be fit into 6600 7 times, resulting in a remainder of 573.
Put 7 as the next digit of the answer. 
Result so far: 69495.909407
The remainder is 573 after subtracting 6027 from 6600.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5730, and continue the process.

Moving on to step 15:
The number 861 fits into 5730 6 times, leaving a remainder of 564.
Record the quotient 6 as the next digit in the result. 
Result so far: 69495.9094076
Subtract 5166 from 5730 to get 564.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5640, and continue the process.

Advancing to step 16:
When dividing 5640 by 861, we get 6 with a remainder of 474.
Record the quotient 6 as the next digit in the result. 
Result so far: 69495.90940766
Subtract 5166 from 5640 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.

After the division, we end up with 69495.90940766 and a remainder of 4.74e-07.