75989089 ÷ 861 
We want to figure out the number of times 75989089 can be divided by 861.

Let's proceed to step 1:
7 divided by 861 is 0 with a remainder of 7.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 7, we get 7.
Take the next digit (5) from the dividend and append it to 7, then repeat: 75 / 861

Moving on to step 2:
The number 861 fits into 75 0 times, leaving a remainder of 75.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 75 and we're left with 75.
Grab the next digit (9) from the dividend, add it to 75, then carry on: 759 / 861

Moving on to step 3:
759 divided by 861 is 0 with a remainder of 759.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 759 to get 759.
Fetch the next digit (8) from the dividend, attach it to 759 and continue: 7598 / 861

Let's proceed to step 4:
The number 861 fits into 7598 8 times, leaving a remainder of 710.
The next digit of our result is 8. 
Result so far: 8.0
Deduct 6888 from 7598 and we're left with 710.
Take the next digit (9) from the dividend and append it to 710, then repeat: 7109 / 861

Step 5:
861 can be fit into 7109 8 times, resulting in a remainder of 221.
The number 8 becomes the next digit in our result. 
Result so far: 88.0
Subtracting 6888 from 7109 leaves us with 221.
Fetch the next digit (0) from the dividend, attach it to 221 and continue: 2210 / 861

Step 6:
861 goes into 2210 2 times with a remainder of 488.
The number 2 becomes the next digit in our result. 
Result so far: 882.0
If we subtract 1722 from 2210, we get 488.
Fetch the next digit (8) from the dividend, attach it to 488 and continue: 4888 / 861

Step 7:
The number 861 fits into 4888 5 times, leaving a remainder of 583.
Put 5 as the next digit of the answer. 
Result so far: 8825.0
Subtracting 4305 from 4888 leaves us with 583.
Fetch the next digit (9) from the dividend, attach it to 583 and continue: 5839 / 861

On to step 8:
861 can be fit into 5839 6 times, resulting in a remainder of 673.
The number 6 becomes the next digit in our result. 
Result so far: 88256.0
Deduct 5166 from 5839 and we're left with 673.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6730, and continue the process.

Step 9:
When dividing 6730 by 861, we get 7 with a remainder of 703.
Put 7 as the next digit of the answer. 
Result so far: 88256.7
The remainder is 703 after subtracting 6027 from 6730.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7030, and continue the process.

On to step 10:
The number 861 fits into 7030 8 times, leaving a remainder of 142.
Put 8 as the next digit of the answer. 
Result so far: 88256.78
The remainder is 142 after subtracting 6888 from 7030.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1420, and continue the process.

Let's proceed to step 11:
861 goes into 1420 1 times with a remainder of 559.
The next digit of our result is 1. 
Result so far: 88256.781
Subtract 861 from 1420 to get 559.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5590, and continue the process.

Let's proceed to step 12:
5590 divided by 861 is 6 with a remainder of 424.
Record the quotient 6 as the next digit in the result. 
Result so far: 88256.7816
Deduct 5166 from 5590 and we're left with 424.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4240, and continue the process.

On to step 13:
If we divide 4240 by 861, we get 4 and a remainder of 796.
The next digit of our result is 4. 
Result so far: 88256.78164
Deduct 3444 from 4240 and we're left with 796.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7960, and continue the process.

On to step 14:
When dividing 7960 by 861, we get 9 with a remainder of 211.
Record the quotient 9 as the next digit in the result. 
Result so far: 88256.781649
Subtracting 7749 from 7960 leaves us with 211.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2110, and continue the process.

On to step 15:
When dividing 2110 by 861, we get 2 with a remainder of 388.
Write down 2 as next digit of the result. 
Result so far: 88256.7816492
Subtracting 1722 from 2110 leaves us with 388.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3880, and continue the process.

Going ahead to step 16:
When dividing 3880 by 861, we get 4 with a remainder of 436.
Use 4 as the next digit of our solution. 
Result so far: 88256.78164924
Deduct 3444 from 3880 and we're left with 436.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4360, and continue the process.

Our division results in 88256.78164924 with a remaining 4.36e-07.