We're dividing 73719559 by 866 
We want to divide 73719559 by 866.

Moving on to step 1:
7 divided by 866 is 0 with a remainder of 7.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 7 and we're left with 7.
Include the next digit (3) from the dividend after 7, then repeat: 73 / 866

Advancing to step 2:
When dividing 73 by 866, we get 0 with a remainder of 73.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 73, we end up with 73.
Append the next digit (7) from the dividend to 73 and continue with: 737 / 866

Let's proceed to step 3:
If we divide 737 by 866, we get 0 and a remainder of 737.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we subtract 0 from 737, we get 737.
Grab the next digit (1) from the dividend, add it to 737, then carry on: 7371 / 866

On to step 4:
When dividing 7371 by 866, we get 8 with a remainder of 443.
Use 8 as the next digit of our solution. 
Result so far: 8.0
If we subtract 6928 from 7371, we get 443.
Bring next digit (9) of the dividend behind the 443 and repeat the process: 4439 / 866

Going ahead to step 5:
866 goes into 4439 5 times with a remainder of 109.
Put 5 as the next digit of the answer. 
Result so far: 85.0
The remainder is 109 after subtracting 4330 from 4439.
Fetch the next digit (5) from the dividend, attach it to 109 and continue: 1095 / 866

Moving on to step 6:
866 can be fit into 1095 1 times, resulting in a remainder of 229.
Write down 1 as next digit of the result. 
Result so far: 851.0
Subtract 866 from 1095 to get 229.
Fetch the next digit (5) from the dividend, attach it to 229 and continue: 2295 / 866

On to step 7:
If we divide 2295 by 866, we get 2 and a remainder of 563.
Put 2 as the next digit of the answer. 
Result so far: 8512.0
If we subtract 1732 from 2295, we get 563.
Take the next digit (9) from the dividend and append it to 563, then repeat: 5639 / 866

Advancing to step 8:
5639 divided by 866 is 6 with a remainder of 443.
Use 6 as the next digit of our solution. 
Result so far: 85126.0
The remainder is 443 after subtracting 5196 from 5639.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4430, and continue the process.

Going ahead to step 9:
866 goes into 4430 5 times with a remainder of 100.
The next digit of our result is 5. 
Result so far: 85126.5
Subtract 4330 from 4430 to get 100.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1000, and continue the process.

Going ahead to step 10:
866 goes into 1000 1 times with a remainder of 134.
Write down 1 as next digit of the result. 
Result so far: 85126.51
Subtracting 866 from 1000 leaves us 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.

Advancing to step 11:
The number 866 fits into 1340 1 times, leaving a remainder of 474.
Use 1 as the next digit of our solution. 
Result so far: 85126.511
Subtracting 866 from 1340 leaves us with 474.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4740, and continue the process.

In conclusion, the division gives 85126.511 with a balance of 0.0474.