121432 ÷ 77 
Let's see how many times 77 fits into 121432.

Moving on to step 1:
77 can be fit into 1 0 times, resulting in a remainder of 1.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 1 and we're left with 1.
Grab the next digit (2) from the dividend, add it to 1, then carry on: 12 / 77

On to step 2:
If we divide 12 by 77, we get 0 and a remainder of 12.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtracting 0 from 12 leaves us with 12.
Grab the next digit (1) from the dividend, add it to 12, then carry on: 121 / 77

Going ahead to step 3:
77 can be fit into 121 1 times, resulting in a remainder of 44.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
Subtracting 77 from 121 leaves us with 44.
Take the next digit (4) from the dividend and append it to 44, then repeat: 444 / 77

Going ahead to step 4:
When dividing 444 by 77, we get 5 with a remainder of 59.
Use 5 as the next digit of our solution. 
Result so far: 15.0
Deduct 385 from 444 and we're left with 59.
Append the next digit (3) from the dividend to 59 and continue with: 593 / 77

Moving on to step 5:
77 goes into 593 7 times with a remainder of 54.
Use 7 as the next digit of our solution. 
Result so far: 157.0
If we take 539 away from 593, we end up with 54.
Bring next digit (2) of the dividend behind the 54 and repeat the process: 542 / 77

Moving on to step 6:
77 can be fit into 542 7 times, resulting in a remainder of 3.
The next digit of our result is 7. 
Result so far: 1577.0
Subtract 539 from 542 to get 3.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

Step 7:
77 goes into 30 0 times with a remainder of 30.
The number 0 becomes the next digit in our result. 
Result so far: 1577.0
Subtract 0 from 30 to get 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Step 8:
77 goes into 300 3 times with a remainder of 69.
The number 3 becomes the next digit in our result. 
Result so far: 1577.03
If we take 231 away from 300, we end up with 69.
Since there are no more digits in the dividend, we add a zero to the remainder making it 690, and continue the process.

On to step 9:
If we divide 690 by 77, we get 8 and a remainder of 74.
Record the quotient 8 as the next digit in the result. 
Result so far: 1577.038
The remainder is 74 after subtracting 616 from 690.
Since there are no more digits in the dividend, we add a zero to the remainder making it 740, and continue the process.

Going ahead to step 10:
77 can be fit into 740 9 times, resulting in a remainder of 47.
Record the quotient 9 as the next digit in the result. 
Result so far: 1577.0389
If we take 693 away from 740, we end up 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.

On to step 11:
When dividing 470 by 77, we get 6 with a remainder of 8.
The next digit of our result is 6. 
Result so far: 1577.03896
If we subtract 462 from 470, we get 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Moving on to step 12:
77 goes into 80 1 times with a remainder of 3.
The next digit of our result is 1. 
Result so far: 1577.038961
Subtracting 77 from 80 leaves us with 3.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

Moving on to step 13:
77 goes into 30 0 times with a remainder of 30.
Record the quotient 0 as the next digit in the result. 
Result so far: 1577.038961
If we take 0 away from 30, we end up with 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Moving on to step 14:
77 can be fit into 300 3 times, resulting in a remainder of 69.
The number 3 becomes the next digit in our result. 
Result so far: 1577.03896103
Subtracting 231 from 300 leaves us with 69.
Since there are no more digits in the dividend, we add a zero to the remainder making it 690, and continue the process.

The final outcome is 1577.03896103, with a leftover of 6.9e-08.