54465776 ÷ 139 
We want to figure out the number of times 54465776 can be divided by 139.

On to step 1:
If we divide 5 by 139, we get 0 and a remainder of 5.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtracting 0 from 5 leaves us with 5.
Grab the next digit (4) from the dividend, add it to 5, then carry on: 54 / 139

Advancing to step 2:
139 can be fit into 54 0 times, resulting in a remainder of 54.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 54 to get 54.
Take the next digit (4) from the dividend and append it to 54, then repeat: 544 / 139

Step 3:
139 goes into 544 3 times with a remainder of 127.
Put 3 as the next digit of the answer. 
Result so far: 3.0
If we take 417 away from 544, we end up with 127.
Bring next digit (6) of the dividend behind the 127 and repeat the process: 1276 / 139

Let's proceed to step 4:
When dividing 1276 by 139, we get 9 with a remainder of 25.
The next digit of our result is 9. 
Result so far: 39.0
Deduct 1251 from 1276 and we're left with 25.
Include the next digit (5) from the dividend after 25, then repeat: 255 / 139

Moving on to step 5:
255 divided by 139 is 1 with a remainder of 116.
Put 1 as the next digit of the answer. 
Result so far: 391.0
Subtracting 139 from 255 leaves us with 116.
Append the next digit (7) from the dividend to 116 and continue with: 1167 / 139

Going ahead to step 6:
1167 divided by 139 is 8 with a remainder of 55.
Use 8 as the next digit of our solution. 
Result so far: 3918.0
Deduct 1112 from 1167 and we're left with 55.
Include the next digit (7) from the dividend after 55, then repeat: 557 / 139

Going ahead to step 7:
The number 139 fits into 557 4 times, leaving a remainder of 1.
The next digit of our result is 4. 
Result so far: 39184.0
Subtract 556 from 557 to get 1.
Grab the next digit (6) from the dividend, add it to 1, then carry on: 16 / 139

Let's proceed to step 8:
139 goes into 16 0 times with a remainder of 16.
The next digit of our result is 0. 
Result so far: 391840.0
If we take 0 away from 16, we end up with 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Advancing to step 9:
The number 139 fits into 160 1 times, leaving a remainder of 21.
Use 1 as the next digit of our solution. 
Result so far: 391840.1
Subtract 139 from 160 to get 21.
Since there are no more digits in the dividend, we add a zero to the remainder making it 210, and continue the process.

Step 10:
139 goes into 210 1 times with a remainder of 71.
The next digit of our result is 1. 
Result so far: 391840.11
Deduct 139 from 210 and we're left 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.

The final result is 391840.11 with a remainder of 0.071.