89073193 ÷ 861 
We want to divide 89073193 by 861.

Going ahead to step 1:
861 goes into 8 0 times with a remainder of 8.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we subtract 0 from 8, we get 8.
Grab the next digit (9) from the dividend, add it to 8, then carry on: 89 / 861

Advancing to step 2:
When dividing 89 by 861, we get 0 with a remainder of 89.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 89, we end up with 89.
Append the next digit (0) from the dividend to 89 and continue with: 890 / 861

Let's proceed to step 3:
861 goes into 890 1 times with a remainder of 29.
Put 1 as the next digit of the answer. 
Result so far: 1.0
If we take 861 away from 890, we end up with 29.
Take the next digit (7) from the dividend and append it to 29, then repeat: 297 / 861

Moving on to step 4:
297 divided by 861 is 0 with a remainder of 297.
Use 0 as the next digit of our solution. 
Result so far: 10.0
Subtract 0 from 297 to get 297.
Fetch the next digit (3) from the dividend, attach it to 297 and continue: 2973 / 861

Moving on to step 5:
When dividing 2973 by 861, we get 3 with a remainder of 390.
Write down 3 as next digit of the result. 
Result so far: 103.0
If we take 2583 away from 2973, we end up with 390.
Include the next digit (1) from the dividend after 390, then repeat: 3901 / 861

On to step 6:
3901 divided by 861 is 4 with a remainder of 457.
Record the quotient 4 as the next digit in the result. 
Result so far: 1034.0
Subtracting 3444 from 3901 leaves us with 457.
Take the next digit (9) from the dividend and append it to 457, then repeat: 4579 / 861

Moving on to step 7:
4579 divided by 861 is 5 with a remainder of 274.
Use 5 as the next digit of our solution. 
Result so far: 10345.0
If we subtract 4305 from 4579, we get 274.
Bring next digit (3) of the dividend behind the 274 and repeat the process: 2743 / 861

Advancing to step 8:
The number 861 fits into 2743 3 times, leaving a remainder of 160.
Put 3 as the next digit of the answer. 
Result so far: 103453.0
If we subtract 2583 from 2743, we get 160.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1600, and continue the process.

Let's proceed to step 9:
1600 divided by 861 is 1 with a remainder of 739.
Write down 1 as next digit of the result. 
Result so far: 103453.1
If we take 861 away from 1600, we end up with 739.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7390, and continue the process.

Step 10:
When dividing 7390 by 861, we get 8 with a remainder of 502.
Use 8 as the next digit of our solution. 
Result so far: 103453.18
If we take 6888 away from 7390, we end up with 502.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5020, and continue the process.

Moving on to step 11:
5020 divided by 861 is 5 with a remainder of 715.
Use 5 as the next digit of our solution. 
Result so far: 103453.185
If we subtract 4305 from 5020, we get 715.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7150, and continue the process.

On to step 12:
The number 861 fits into 7150 8 times, leaving a remainder of 262.
Write down 8 as next digit of the result. 
Result so far: 103453.1858
Subtracting 6888 from 7150 leaves us with 262.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2620, and continue the process.

On to step 13:
When dividing 2620 by 861, we get 3 with a remainder of 37.
Record the quotient 3 as the next digit in the result. 
Result so far: 103453.18583
If we take 2583 away from 2620, we end up with 37.
Since there are no more digits in the dividend, we add a zero to the remainder making it 370, and continue the process.

Going ahead to step 14:
When dividing 370 by 861, we get 0 with a remainder of 370.
The number 0 becomes the next digit in our result. 
Result so far: 103453.18583
If we subtract 0 from 370, we get 370.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3700, and continue the process.

Let's proceed to step 15:
861 can be fit into 3700 4 times, resulting in a remainder of 256.
The next digit of our result is 4. 
Result so far: 103453.1858304
If we take 3444 away from 3700, we end up with 256.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2560, and continue the process.

Let's proceed to step 16:
When dividing 2560 by 861, we get 2 with a remainder of 838.
The next digit of our result is 2. 
Result so far: 103453.18583042
Subtracting 1722 from 2560 leaves us with 838.
Since there are no more digits in the dividend, we add a zero to the remainder making it 8380, and continue the process.

The final outcome is 103453.18583042, with a leftover of 8.38e-07.