78396189 ÷ 89 
We're looking to find how many times 89 goes into 78396189.

Let's proceed to step 1:
The number 89 fits into 7 0 times, leaving a remainder of 7.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 7 to get 7.
Grab the next digit (8) from the dividend, add it to 7, then carry on: 78 / 89

Let's proceed to step 2:
89 goes into 78 0 times with a remainder of 78.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 78 to get 78.
Bring next digit (3) of the dividend behind the 78 and repeat the process: 783 / 89

Going ahead to step 3:
When dividing 783 by 89, we get 8 with a remainder of 71.
The number 8 becomes the next digit in our result. 
Result so far: 8.0
Subtracting 712 from 783 leaves us with 71.
Grab the next digit (9) from the dividend, add it to 71, then carry on: 719 / 89

Moving on to step 4:
719 divided by 89 is 8 with a remainder of 7.
Use 8 as the next digit of our solution. 
Result so far: 88.0
Subtracting 712 from 719 leaves us with 7.
Take the next digit (6) from the dividend and append it to 7, then repeat: 76 / 89

Going ahead to step 5:
The number 89 fits into 76 0 times, leaving a remainder of 76.
Write down 0 as next digit of the result. 
Result so far: 880.0
Subtract 0 from 76 to get 76.
Grab the next digit (1) from the dividend, add it to 76, then carry on: 761 / 89

Let's proceed to step 6:
The number 89 fits into 761 8 times, leaving a remainder of 49.
Record the quotient 8 as the next digit in the result. 
Result so far: 8808.0
The remainder is 49 after subtracting 712 from 761.
Take the next digit (8) from the dividend and append it to 49, then repeat: 498 / 89

Advancing to step 7:
89 can be fit into 498 5 times, resulting in a remainder of 53.
The next digit of our result is 5. 
Result so far: 88085.0
Deduct 445 from 498 and we're left with 53.
Fetch the next digit (9) from the dividend, attach it to 53 and continue: 539 / 89

Let's proceed to step 8:
539 divided by 89 is 6 with a remainder of 5.
The number 6 becomes the next digit in our result. 
Result so far: 880856.0
Deduct 534 from 539 and we're left with 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

Let's proceed to step 9:
89 goes into 50 0 times with a remainder of 50.
Write down 0 as next digit of the result. 
Result so far: 880856.0
If we take 0 away from 50, we end up with 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

Step 10:
500 divided by 89 is 5 with a remainder of 55.
The next digit of our result is 5. 
Result so far: 880856.05
Subtracting 445 from 500 leaves us with 55.
Since there are no more digits in the dividend, we add a zero to the remainder making it 550, and continue the process.

Going ahead to step 11:
The number 89 fits into 550 6 times, leaving a remainder of 16.
Use 6 as the next digit of our solution. 
Result so far: 880856.056
If we subtract 534 from 550, we get 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

On to step 12:
89 can be fit into 160 1 times, resulting in a remainder of 71.
The number 1 becomes the next digit in our result. 
Result so far: 880856.0561
If we take 89 away from 160, we end up with 71.
Since there are no more digits in the dividend, we add a zero to the remainder making it 710, and continue the process.

Moving on to step 13:
89 can be fit into 710 7 times, resulting in a remainder of 87.
Write down 7 as next digit of the result. 
Result so far: 880856.05617
If we take 623 away from 710, we end up with 87.
Since there are no more digits in the dividend, we add a zero to the remainder making it 870, and continue the process.

On to step 14:
The number 89 fits into 870 9 times, leaving a remainder of 69.
The number 9 becomes the next digit in our result. 
Result so far: 880856.056179
Subtract 801 from 870 to get 69.
Since there are no more digits in the dividend, we add a zero to the remainder making it 690, and continue the process.

Let's proceed to step 15:
When dividing 690 by 89, we get 7 with a remainder of 67.
Write down 7 as next digit of the result. 
Result so far: 880856.0561797
Deduct 623 from 690 and we're left with 67.
Since there are no more digits in the dividend, we add a zero to the remainder making it 670, and continue the process.

Moving on to step 16:
670 divided by 89 is 7 with a remainder of 47.
Use 7 as the next digit of our solution. 
Result so far: 880856.05617977
Subtracting 623 from 670 leaves us with 47.
Since there are no more digits in the dividend, we add a zero to the remainder making it 470, and continue the process.

After the division, we end up with 880856.05617977 and a remainder of 4.7e-08.