59863742 divided by 861 
The aim is to understand the frequency of 861 in 59863742.

Moving on to step 1:
5 divided by 861 is 0 with a remainder of 5.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 5 after subtracting 0 from 5.
Take the next digit (9) from the dividend and append it to 5, then repeat: 59 / 861

Going ahead 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
Deduct 0 from 59 and we're left with 59.
Grab the next digit (8) from the dividend, add it to 59, then carry on: 598 / 861

Step 3:
861 goes into 598 0 times with a remainder of 598.
The next digit of our result is 0. 
Result so far: 0.0
Subtracting 0 from 598 leaves us with 598.
Fetch the next digit (6) from the dividend, attach it to 598 and continue: 5986 / 861

Moving on to step 4:
5986 divided by 861 is 6 with a remainder of 820.
Put 6 as the next digit of the answer. 
Result so far: 6.0
The remainder is 820 after subtracting 5166 from 5986.
Fetch the next digit (3) from the dividend, attach it to 820 and continue: 8203 / 861

On to step 5:
861 can be fit into 8203 9 times, resulting in a remainder of 454.
Use 9 as the next digit of our solution. 
Result so far: 69.0
If we subtract 7749 from 8203, we get 454.
Fetch the next digit (7) from the dividend, attach it to 454 and continue: 4547 / 861

Going ahead to step 6:
The number 861 fits into 4547 5 times, leaving a remainder of 242.
Use 5 as the next digit of our solution. 
Result so far: 695.0
Deduct 4305 from 4547 and we're left with 242.
Fetch the next digit (4) from the dividend, attach it to 242 and continue: 2424 / 861

Let's proceed to step 7:
When dividing 2424 by 861, we get 2 with a remainder of 702.
The next digit of our result is 2. 
Result so far: 6952.0
Subtracting 1722 from 2424 leaves us with 702.
Take the next digit (2) from the dividend and append it to 702, then repeat: 7022 / 861

Moving on to step 8:
861 can be fit into 7022 8 times, resulting in a remainder of 134.
Record the quotient 8 as the next digit in the result. 
Result so far: 69528.0
If we take 6888 away from 7022, we end up with 134.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1340, and continue the process.

On to step 9:
When dividing 1340 by 861, we get 1 with a remainder of 479.
The next digit of our result is 1. 
Result so far: 69528.1
The remainder is 479 after subtracting 861 from 1340.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4790, and continue the process.

Step 10:
861 can be fit into 4790 5 times, resulting in a remainder of 485.
The next digit of our result is 5. 
Result so far: 69528.15
Deduct 4305 from 4790 and we're left with 485.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4850, and continue the process.

On to step 11:
If we divide 4850 by 861, we get 5 and a remainder of 545.
Put 5 as the next digit of the answer. 
Result so far: 69528.155
If we take 4305 away from 4850, we end up with 545.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5450, and continue the process.

The final result is 69528.155 with a remainder of 0.0545.