78435312 ÷ 637 
We want to divide 78435312 by 637.

Let's proceed to step 1:
7 divided by 637 is 0 with a remainder of 7.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 7, we get 7.
Bring next digit (8) of the dividend behind the 7 and repeat the process: 78 / 637

Step 2:
When dividing 78 by 637, we get 0 with a remainder of 78.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 78 after subtracting 0 from 78.
Grab the next digit (4) from the dividend, add it to 78, then carry on: 784 / 637

On to step 3:
637 goes into 784 1 times with a remainder of 147.
Use 1 as the next digit of our solution. 
Result so far: 1.0
If we take 637 away from 784, we end up with 147.
Grab the next digit (3) from the dividend, add it to 147, then carry on: 1473 / 637

Advancing to step 4:
When dividing 1473 by 637, we get 2 with a remainder of 199.
Use 2 as the next digit of our solution. 
Result so far: 12.0
Subtract 1274 from 1473 to get 199.
Fetch the next digit (5) from the dividend, attach it to 199 and continue: 1995 / 637

Moving on to step 5:
1995 divided by 637 is 3 with a remainder of 84.
Record the quotient 3 as the next digit in the result. 
Result so far: 123.0
Subtracting 1911 from 1995 leaves us with 84.
Fetch the next digit (3) from the dividend, attach it to 84 and continue: 843 / 637

Going ahead to step 6:
The number 637 fits into 843 1 times, leaving a remainder of 206.
Write down 1 as next digit of the result. 
Result so far: 1231.0
If we take 637 away from 843, we end up with 206.
Append the next digit (1) from the dividend to 206 and continue with: 2061 / 637

Let's proceed to step 7:
When dividing 2061 by 637, we get 3 with a remainder of 150.
The next digit of our result is 3. 
Result so far: 12313.0
The remainder is 150 after subtracting 1911 from 2061.
Take the next digit (2) from the dividend and append it to 150, then repeat: 1502 / 637

Moving on to step 8:
When dividing 1502 by 637, we get 2 with a remainder of 228.
Record the quotient 2 as the next digit in the result. 
Result so far: 123132.0
Deduct 1274 from 1502 and we're left with 228.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2280, and continue the process.

Let's proceed to step 9:
637 goes into 2280 3 times with a remainder of 369.
The next digit of our result is 3. 
Result so far: 123132.3
Subtracting 1911 from 2280 leaves us with 369.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3690, and continue the process.

Advancing to step 10:
When dividing 3690 by 637, we get 5 with a remainder of 505.
The number 5 becomes the next digit in our result. 
Result so far: 123132.35
Subtract 3185 from 3690 to get 505.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5050, and continue the process.

Step 11:
The number 637 fits into 5050 7 times, leaving a remainder of 591.
Write down 7 as next digit of the result. 
Result so far: 123132.357
Subtracting 4459 from 5050 leaves us with 591.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5910, and continue the process.

Advancing to step 12:
637 can be fit into 5910 9 times, resulting in a remainder of 177.
Write down 9 as next digit of the result. 
Result so far: 123132.3579
The remainder is 177 after subtracting 5733 from 5910.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1770, and continue the process.

On to step 13:
When dividing 1770 by 637, we get 2 with a remainder of 496.
Record the quotient 2 as the next digit in the result. 
Result so far: 123132.35792
If we take 1274 away from 1770, we end up with 496.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4960, and continue the process.

Moving on to step 14:
If we divide 4960 by 637, we get 7 and a remainder of 501.
Write down 7 as next digit of the result. 
Result so far: 123132.357927
The remainder is 501 after subtracting 4459 from 4960.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5010, and continue the process.

Moving on to step 15:
When dividing 5010 by 637, we get 7 with a remainder of 551.
Put 7 as the next digit of the answer. 
Result so far: 123132.3579277
Subtracting 4459 from 5010 leaves us with 551.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5510, and continue the process.

In conclusion, the division gives 123132.3579277 with a balance of 5.51e-06.