Let's divide 78691453 by 155
We want to figure out the number of times 78691453 can be divided by 155.

Moving on to step 1:
155 goes into 7 0 times with a remainder of 7.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 7, we end up with 7.
Grab the next digit (8) from the dividend, add it to 7, then carry on: 78 / 155

Moving on to step 2:
When dividing 78 by 155, we get 0 with a remainder of 78.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 78 leaves us with 78.
Append the next digit (6) from the dividend to 78 and continue with: 786 / 155

On to step 3:
When dividing 786 by 155, we get 5 with a remainder of 11.
Use 5 as the next digit of our solution. 
Result so far: 5.0
Deduct 775 from 786 and we're left with 11.
Include the next digit (9) from the dividend after 11, then repeat: 119 / 155

Moving on to step 4:
155 goes into 119 0 times with a remainder of 119.
Record the quotient 0 as the next digit in the result. 
Result so far: 50.0
The remainder is 119 after subtracting 0 from 119.
Append the next digit (1) from the dividend to 119 and continue with: 1191 / 155

Going ahead to step 5:
155 goes into 1191 7 times with a remainder of 106.
Record the quotient 7 as the next digit in the result. 
Result so far: 507.0
The remainder is 106 after subtracting 1085 from 1191.
Fetch the next digit (4) from the dividend, attach it to 106 and continue: 1064 / 155

On to step 6:
155 can be fit into 1064 6 times, resulting in a remainder of 134.
The next digit of our result is 6. 
Result so far: 5076.0
Subtract 930 from 1064 to get 134.
Fetch the next digit (5) from the dividend, attach it to 134 and continue: 1345 / 155

Advancing to step 7:
When dividing 1345 by 155, we get 8 with a remainder of 105.
Put 8 as the next digit of the answer. 
Result so far: 50768.0
The remainder is 105 after subtracting 1240 from 1345.
Fetch the next digit (3) from the dividend, attach it to 105 and continue: 1053 / 155

Advancing to step 8:
155 goes into 1053 6 times with a remainder of 123.
Use 6 as the next digit of our solution. 
Result so far: 507686.0
If we subtract 930 from 1053, we get 123.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1230, and continue the process.

Let's proceed to step 9:
155 goes into 1230 7 times with a remainder of 145.
The number 7 becomes the next digit in our result. 
Result so far: 507686.7
Subtracting 1085 from 1230 leaves us with 145.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1450, and continue the process.

Going ahead to step 10:
155 can be fit into 1450 9 times, resulting in a remainder of 55.
The number 9 becomes the next digit in our result. 
Result so far: 507686.79
The remainder is 55 after subtracting 1395 from 1450.
Since there are no more digits in the dividend, we add a zero to the remainder making it 550, and continue the process.

Let's proceed to step 11:
When dividing 550 by 155, we get 3 with a remainder of 85.
Record the quotient 3 as the next digit in the result. 
Result so far: 507686.793
Subtract 465 from 550 to get 85.
Since there are no more digits in the dividend, we add a zero to the remainder making it 850, and continue the process.

On to step 12:
155 goes into 850 5 times with a remainder of 75.
Write down 5 as next digit of the result. 
Result so far: 507686.7935
Subtracting 775 from 850 leaves us with 75.
Since there are no more digits in the dividend, we add a zero to the remainder making it 750, and continue the process.

Advancing to step 13:
The number 155 fits into 750 4 times, leaving a remainder of 130.
The next digit of our result is 4. 
Result so far: 507686.79354
Subtract 620 from 750 to get 130.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1300, and continue the process.

Step 14:
155 goes into 1300 8 times with a remainder of 60.
Use 8 as the next digit of our solution. 
Result so far: 507686.793548
Subtract 1240 from 1300 to get 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

On to step 15:
600 divided by 155 is 3 with a remainder of 135.
Use 3 as the next digit of our solution. 
Result so far: 507686.7935483
If we take 465 away from 600, we end up with 135.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1350, and continue the process.

On to step 16:
155 goes into 1350 8 times with a remainder of 110.
Use 8 as the next digit of our solution. 
Result so far: 507686.79354838
The remainder is 110 after subtracting 1240 from 1350.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1100, and continue the process.

After the division, we end up with 507686.79354838 and a remainder of 1.1e-07.